{"id":27065,"date":"2023-08-18T13:24:46","date_gmt":"2023-08-18T07:54:46","guid":{"rendered":"https:\/\/conexmetals.com\/product\/back-nuts\/"},"modified":"2026-06-28T21:52:33","modified_gmt":"2026-06-28T16:22:33","slug":"contre-ecrous","status":"publish","type":"product","link":"https:\/\/conexmetals.com\/fr\/product\/contre-ecrous\/","title":{"rendered":"Contre-\u00c9crous"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p class=\"\" data-start=\"49\" data-end=\"554\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-medium wp-image-14528 alignright\" src=\"https:\/\/conexmetals.com\/wp-content\/uploads\/2023\/08\/Back-Nuts-300x300.webp\" alt=\"Back Nuts\" width=\"300\" height=\"300\" srcset=\"https:\/\/conexmetals.com\/wp-content\/uploads\/2023\/08\/Back-Nuts-300x300.webp 300w, https:\/\/conexmetals.com\/wp-content\/uploads\/2023\/08\/Back-Nuts-150x150.webp 150w, https:\/\/conexmetals.com\/wp-content\/uploads\/2023\/08\/Back-Nuts-100x100.webp 100w, https:\/\/conexmetals.com\/wp-content\/uploads\/2023\/08\/Back-Nuts.webp 466w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>We are one of the leading manufacturers and exporters of Brass Back Nuts from India. We have been supplying premium-quality Back Nuts to the world market for many decades. Brass Back Nuts are essential components used in plumbing and pipe fitting applications, particularly for securing taps, valves, and other fixtures to sinks and panels. These internally threaded hexagonal nuts offer superior strength, corrosion resistance, and machinability, making them ideal for both domestic and industrial usage.<\/p>\n<p class=\"\" data-start=\"556\" data-end=\"1053\">Our Back Nuts are widely appreciated for their dimensional accuracy, consistent performance, and long-lasting durability. We offer customization in sizes, threads, material grades, and finishes to meet specific requirements. With a global customer base across the USA, Europe, the Middle East, and Africa, we understand and comply with international standards like BS 864, IS 319, ASTM B16, and DIN 8076. These Back Nuts are available in both standard and custom-made designs for OEM applications.<\/p>\n<p class=\"\" data-start=\"1055\" data-end=\"1074\"><strong data-start=\"1055\" data-end=\"1074\">Material Grades<\/strong><\/p>\n<p class=\"\" data-start=\"1076\" data-end=\"1237\">Brass Back Nuts can be manufactured in various Brass compositions depending on usage, pressure tolerance, and environmental exposure. The typical grades include:<\/p>\n<div class=\"overflow-x-auto contain-inline-size\">\n<table data-start=\"1239\" data-end=\"1956\">\n<thead data-start=\"1239\" data-end=\"1356\">\n<tr data-start=\"1239\" data-end=\"1356\">\n<th data-start=\"1239\" data-end=\"1261\">Material Type<\/th>\n<th data-start=\"1261\" data-end=\"1284\">Composition Standard<\/th>\n<th data-start=\"1284\" data-end=\"1317\">Key Elements<\/th>\n<th data-start=\"1317\" data-end=\"1356\">Properties<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"1478\" data-end=\"1956\">\n<tr data-start=\"1478\" data-end=\"1596\">\n<td>Free Cutting Brass<\/td>\n<td>IS 319 Type I<\/td>\n<td>Cu: 57-63%, Pb: 2.0-3.0%, Zn: R<\/td>\n<td>High machinability, good strength<\/td>\n<\/tr>\n<tr data-start=\"1597\" data-end=\"1716\">\n<td>High Tensile Brass<\/td>\n<td>IS 320<\/td>\n<td>Cu: 55-59%, Pb: 1.0%, Fe: 0.5%<\/td>\n<td>Higher strength, tougher<\/td>\n<\/tr>\n<tr data-start=\"1717\" data-end=\"1836\">\n<td>DZR Brass<\/td>\n<td>BS EN 12165 CW602N<\/td>\n<td>Cu: 61%, Zn: Balance, As: 0.1%<\/td>\n<td>Dezincification resistant, durable<\/td>\n<\/tr>\n<tr data-start=\"1837\" data-end=\"1956\">\n<td>Lead-Free Brass<\/td>\n<td>ASTM B584<\/td>\n<td>Cu: 85-89%, Bi: 2.0%, Zn: R<\/td>\n<td>Safe for potable water systems<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"\" data-start=\"1958\" data-end=\"1985\"><strong data-start=\"1958\" data-end=\"1985\">Manufacturing Processes<\/strong><\/p>\n<p class=\"\" data-start=\"1987\" data-end=\"2144\">Brass Back Nuts are manufactured through a combination of hot forging, precision CNC machining, threading, and finishing. The manufacturing process includes:<\/p>\n<ul data-start=\"2146\" data-end=\"2398\">\n<li class=\"\" data-start=\"2146\" data-end=\"2185\">\n<p class=\"\" data-start=\"2148\" data-end=\"2185\">Raw Brass Rod procurement and cutting<\/p>\n<\/li>\n<li class=\"\" data-start=\"2186\" data-end=\"2230\">\n<p class=\"\" data-start=\"2188\" data-end=\"2230\">Hot forging or casting for blank formation<\/p>\n<\/li>\n<li class=\"\" data-start=\"2231\" data-end=\"2277\">\n<p class=\"\" data-start=\"2233\" data-end=\"2277\">CNC Turning and Threading (metric, BSP, NPT)<\/p>\n<\/li>\n<li class=\"\" data-start=\"2278\" data-end=\"2320\">\n<p class=\"\" data-start=\"2280\" data-end=\"2320\">Chamfering, Deburring, and Quality Check<\/p>\n<\/li>\n<li class=\"\" data-start=\"2321\" data-end=\"2366\">\n<p class=\"\" data-start=\"2323\" data-end=\"2366\">Surface treatment (Natural, Nickel, Chrome)<\/p>\n<\/li>\n<li class=\"\" data-start=\"2367\" data-end=\"2398\">\n<p class=\"\" data-start=\"2369\" data-end=\"2398\">Custom labeling and packaging<\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"2400\" data-end=\"2418\"><strong data-start=\"2400\" data-end=\"2418\">Machinery Used<\/strong><\/p>\n<ul data-start=\"2420\" data-end=\"2590\">\n<li class=\"\" data-start=\"2420\" data-end=\"2460\">\n<p class=\"\" data-start=\"2422\" data-end=\"2460\">CNC Lathes (Fanuc, Siemens controlled)<\/p>\n<\/li>\n<li class=\"\" data-start=\"2461\" data-end=\"2507\">\n<p class=\"\" data-start=\"2463\" data-end=\"2507\">Hot Forging Press (Hydraulic and Mechanical)<\/p>\n<\/li>\n<li class=\"\" data-start=\"2508\" data-end=\"2533\">\n<p class=\"\" data-start=\"2510\" data-end=\"2533\">Thread Rolling Machines<\/p>\n<\/li>\n<li class=\"\" data-start=\"2534\" data-end=\"2559\">\n<p class=\"\" data-start=\"2536\" data-end=\"2559\">Surface Polishing Units<\/p>\n<\/li>\n<li class=\"\" data-start=\"2560\" data-end=\"2590\">\n<p class=\"\" data-start=\"2562\" data-end=\"2590\">Automated Inspection Systems<\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"2592\" data-end=\"2618\"><strong data-start=\"2592\" data-end=\"2618\">Typical Parts Produced<\/strong><\/p>\n<ul data-start=\"2620\" data-end=\"2744\">\n<li class=\"\" data-start=\"2620\" data-end=\"2641\">\n<p class=\"\" data-start=\"2622\" data-end=\"2641\">Hexagonal Back Nuts<\/p>\n<\/li>\n<li class=\"\" data-start=\"2642\" data-end=\"2669\">\n<p class=\"\" data-start=\"2644\" data-end=\"2669\">Round Back Nuts with Lugs<\/p>\n<\/li>\n<li class=\"\" data-start=\"2670\" data-end=\"2686\">\n<p class=\"\" data-start=\"2672\" data-end=\"2686\">Dome Type Nuts<\/p>\n<\/li>\n<li class=\"\" data-start=\"2687\" data-end=\"2707\">\n<p class=\"\" data-start=\"2689\" data-end=\"2707\">Slotted Panel Nuts<\/p>\n<\/li>\n<li class=\"\" data-start=\"2708\" data-end=\"2744\">\n<p class=\"\" data-start=\"2710\" data-end=\"2744\">Lock Nuts for Compression Fittings<\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"2746\" data-end=\"2764\"><strong data-start=\"2746\" data-end=\"2764\">Finish Options<\/strong><\/p>\n<ul data-start=\"2766\" data-end=\"2854\">\n<li class=\"\" data-start=\"2766\" data-end=\"2788\">\n<p class=\"\" data-start=\"2768\" data-end=\"2788\">Natural Brass Finish<\/p>\n<\/li>\n<li class=\"\" data-start=\"2789\" data-end=\"2804\">\n<p class=\"\" data-start=\"2791\" data-end=\"2804\">Nickel Plated<\/p>\n<\/li>\n<li class=\"\" data-start=\"2805\" data-end=\"2820\">\n<p class=\"\" data-start=\"2807\" data-end=\"2820\">Chrome Plated<\/p>\n<\/li>\n<li class=\"\" data-start=\"2821\" data-end=\"2836\">\n<p class=\"\" data-start=\"2823\" data-end=\"2836\">Antique Brass<\/p>\n<\/li>\n<li class=\"\" data-start=\"2837\" data-end=\"2854\">\n<p class=\"\" data-start=\"2839\" data-end=\"2854\">Electropolished<\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"2856\" data-end=\"2892\"><strong data-start=\"2856\" data-end=\"2892\">Industries Using Brass Back Nuts<\/strong><\/p>\n<ul data-start=\"2894\" data-end=\"3082\">\n<li class=\"\" data-start=\"2894\" data-end=\"2919\">\n<p class=\"\" data-start=\"2896\" data-end=\"2919\">Plumbing and Sanitation<\/p>\n<\/li>\n<li class=\"\" data-start=\"2920\" data-end=\"2949\">\n<p class=\"\" data-start=\"2922\" data-end=\"2949\">HVAC and Water Distribution<\/p>\n<\/li>\n<li class=\"\" data-start=\"2950\" data-end=\"2976\">\n<p class=\"\" data-start=\"2952\" data-end=\"2976\">Gas Fitting and Metering<\/p>\n<\/li>\n<li class=\"\" data-start=\"2977\" data-end=\"3002\">\n<p class=\"\" data-start=\"2979\" data-end=\"3002\">Marine and Shipbuilding<\/p>\n<\/li>\n<li class=\"\" data-start=\"3003\" data-end=\"3038\">\n<p class=\"\" data-start=\"3005\" data-end=\"3038\">Renewable Energy (Solar Mounting)<\/p>\n<\/li>\n<li class=\"\" data-start=\"3039\" data-end=\"3082\">\n<p class=\"\" data-start=\"3041\" data-end=\"3082\">OEM Manufacturing (Appliances and Valves)<\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"3084\" data-end=\"3098\"><strong data-start=\"3084\" data-end=\"3098\">Tolerances<\/strong><\/p>\n<p class=\"\" data-start=\"3100\" data-end=\"3155\">Our Back Nuts comply with close dimensional tolerances:<\/p>\n<div class=\"overflow-x-auto contain-inline-size\">\n<table data-start=\"3157\" data-end=\"3468\">\n<thead data-start=\"3157\" data-end=\"3208\">\n<tr data-start=\"3157\" data-end=\"3208\">\n<th data-start=\"3157\" data-end=\"3182\">Parameter<\/th>\n<th data-start=\"3182\" data-end=\"3208\">Tolerance (mm)<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"3261\" data-end=\"3468\">\n<tr data-start=\"3261\" data-end=\"3312\">\n<td>Outer Diameter<\/td>\n<td>\u00b1 0.10 mm<\/td>\n<\/tr>\n<tr data-start=\"3313\" data-end=\"3364\">\n<td>Thread Pitch Accuracy<\/td>\n<td>Class A as per BS\/ISO<\/td>\n<\/tr>\n<tr data-start=\"3365\" data-end=\"3416\">\n<td>Hex Across Flats<\/td>\n<td>\u00b1 0.15 mm<\/td>\n<\/tr>\n<tr data-start=\"3417\" data-end=\"3468\">\n<td>Thickness<\/td>\n<td>\u00b1 0.20 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"\" data-start=\"3470\" data-end=\"3493\"><strong data-start=\"3470\" data-end=\"3493\">Performance Metrics<\/strong><\/p>\n<ul data-start=\"3495\" data-end=\"3698\">\n<li class=\"\" data-start=\"3495\" data-end=\"3534\">\n<p class=\"\" data-start=\"3497\" data-end=\"3534\">Thread Strength Tested (up to 15 bar)<\/p>\n<\/li>\n<li class=\"\" data-start=\"3535\" data-end=\"3585\">\n<p class=\"\" data-start=\"3537\" data-end=\"3585\">Salt Spray Resistance (Nickel Plated &gt; 96 hours)<\/p>\n<\/li>\n<li class=\"\" data-start=\"3586\" data-end=\"3624\">\n<p class=\"\" data-start=\"3588\" data-end=\"3624\">Torque Resistance (Standard &gt; 20 Nm)<\/p>\n<\/li>\n<li class=\"\" data-start=\"3625\" data-end=\"3657\">\n<p class=\"\" data-start=\"3627\" data-end=\"3657\">Thermal Endurance: Up to 120\u00b0C<\/p>\n<\/li>\n<li class=\"\" data-start=\"3658\" data-end=\"3698\">\n<p class=\"\" data-start=\"3660\" data-end=\"3698\">Lifespan: 15+ Years under normal usage<\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"3700\" data-end=\"3719\"><strong data-start=\"3700\" data-end=\"3719\">Turnaround Time<\/strong><\/p>\n<p class=\"\" data-start=\"3721\" data-end=\"3833\">We offer a standard turnaround time of <strong data-start=\"3760\" data-end=\"3773\">4-6 weeks<\/strong> including production, inspection, and customized packaging.<\/p>\n<p class=\"\" data-start=\"3835\" data-end=\"3886\"><strong data-start=\"3835\" data-end=\"3886\">Size \u2013 Dimensional Chart (Metric &amp; BSP Threads)<\/strong><\/p>\n<div class=\"overflow-x-auto contain-inline-size\">\n<table data-start=\"3888\" data-end=\"4529\">\n<thead data-start=\"3888\" data-end=\"3977\">\n<tr data-start=\"3888\" data-end=\"3977\">\n<th data-start=\"3888\" data-end=\"3904\">Size (Thread)<\/th>\n<th data-start=\"3904\" data-end=\"3926\">Outer Diameter (mm)<\/th>\n<th data-start=\"3926\" data-end=\"3943\">Thickness (mm)<\/th>\n<th data-start=\"3943\" data-end=\"3963\">Across Flats (mm)<\/th>\n<th data-start=\"3963\" data-end=\"3977\">Type<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"4070\" data-end=\"4529\">\n<tr data-start=\"4070\" data-end=\"4161\">\n<td>1\/2&Prime; BSP<\/td>\n<td>26.4<\/td>\n<td>4.5<\/td>\n<td>24<\/td>\n<td>Hex<\/td>\n<\/tr>\n<tr data-start=\"4162\" data-end=\"4253\">\n<td>3\/4&Prime; BSP<\/td>\n<td>32.9<\/td>\n<td>5.0<\/td>\n<td>30<\/td>\n<td>Hex<\/td>\n<\/tr>\n<tr data-start=\"4254\" data-end=\"4345\">\n<td>1&Prime; BSP<\/td>\n<td>41.9<\/td>\n<td>6.0<\/td>\n<td>38<\/td>\n<td>Hex<\/td>\n<\/tr>\n<tr data-start=\"4346\" data-end=\"4437\">\n<td>1.1\/4&Prime; BSP<\/td>\n<td>50.8<\/td>\n<td>6.5<\/td>\n<td>46<\/td>\n<td>Hex<\/td>\n<\/tr>\n<tr data-start=\"4438\" data-end=\"4529\">\n<td>Custom Sizes<\/td>\n<td>On Request<\/td>\n<td>As required<\/td>\n<td>Custom<\/td>\n<td>Hex\/Dome<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"\" data-start=\"4531\" data-end=\"4549\"><strong data-start=\"4531\" data-end=\"4549\">Why Choose Us?<\/strong><\/p>\n<ul data-start=\"4551\" data-end=\"5097\">\n<li class=\"\" data-start=\"4551\" data-end=\"4657\">\n<p class=\"\" data-start=\"4553\" data-end=\"4657\"><strong data-start=\"4553\" data-end=\"4575\">Faster Turnaround:<\/strong> With efficient production and inventory management, we ensure quicker deliveries.<\/p>\n<\/li>\n<li class=\"\" data-start=\"4658\" data-end=\"4746\">\n<p class=\"\" data-start=\"4660\" data-end=\"4746\"><strong data-start=\"4660\" data-end=\"4685\">Customized Solutions:<\/strong> Tailored Back Nuts with personalized labeling and packaging.<\/p>\n<\/li>\n<li class=\"\" data-start=\"4747\" data-end=\"4851\">\n<p class=\"\" data-start=\"4749\" data-end=\"4851\"><strong data-start=\"4749\" data-end=\"4771\">Global Experience:<\/strong> Over 30 years of export expertise serving USA, UK, EU, and Middle East clients.<\/p>\n<\/li>\n<li class=\"\" data-start=\"4852\" data-end=\"4927\">\n<p class=\"\" data-start=\"4854\" data-end=\"4927\"><strong data-start=\"4854\" data-end=\"4875\">Customer Support:<\/strong> Prompt, clear communication and technical guidance.<\/p>\n<\/li>\n<li class=\"\" data-start=\"4928\" data-end=\"5008\">\n<p class=\"\" data-start=\"4930\" data-end=\"5008\"><strong data-start=\"4930\" data-end=\"4957\">Flexible Manufacturing:<\/strong> We handle both small batch and high-volume orders.<\/p>\n<\/li>\n<li class=\"\" data-start=\"5009\" data-end=\"5097\">\n<p class=\"\" data-start=\"5011\" data-end=\"5097\"><strong data-start=\"5011\" data-end=\"5026\">Compliance:<\/strong> We meet BS, IS, ASTM, and DIN standards ensuring global compatibility.<\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"5099\" data-end=\"5123\"><strong data-start=\"5099\" data-end=\"5123\">Packaging &amp; Shipping<\/strong><\/p>\n<p class=\"\" data-start=\"5125\" data-end=\"5187\">All Back Nuts are cleaned, dried, and packed with utmost care:<\/p>\n<ul data-start=\"5188\" data-end=\"5363\">\n<li class=\"\" data-start=\"5188\" data-end=\"5241\">\n<p class=\"\" data-start=\"5190\" data-end=\"5241\">Polybag + Corrugated Box + Palletized Export Carton<\/p>\n<\/li>\n<li class=\"\" data-start=\"5242\" data-end=\"5277\">\n<p class=\"\" data-start=\"5244\" data-end=\"5277\">Customer labels\/barcodes included<\/p>\n<\/li>\n<li class=\"\" data-start=\"5278\" data-end=\"5321\">\n<p class=\"\" data-start=\"5280\" data-end=\"5321\">Fumigated wooden crates for sea shipments<\/p>\n<\/li>\n<li class=\"\" data-start=\"5322\" data-end=\"5363\">\n<p class=\"\" data-start=\"5324\" data-end=\"5363\">Air-freight packaging options available<\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"5365\" data-end=\"5389\"><strong data-start=\"5365\" data-end=\"5389\">Customer Testimonial<\/strong><\/p>\n<p class=\"\" data-start=\"5391\" data-end=\"5707\"><strong data-start=\"5391\" data-end=\"5419\">John Mathews \u2013 Ohio, USA<\/strong><br data-start=\"5419\" data-end=\"5422\" \/><em data-start=\"5422\" data-end=\"5707\">\u00ab\u00a0We&rsquo;ve been sourcing Brass Back Nuts from this supplier in India for over 7 years. Their quality, consistency, and commitment are exceptional. Timely deliveries, solid technical understanding, and the flexibility to meet our special requests keep us coming back. Highly recommended!\u00a0\u00bb<\/em><\/p>\n<p class=\"\" data-start=\"5709\" data-end=\"5726\"><strong data-start=\"5709\" data-end=\"5726\">Typical Q &amp; A<\/strong><\/p>\n<ol data-start=\"5728\" data-end=\"7028\">\n<li class=\"\" data-start=\"5728\" data-end=\"5849\">\n<p class=\"\" data-start=\"5731\" data-end=\"5849\"><strong data-start=\"5731\" data-end=\"5737\">Q:<\/strong> Can you supply Back Nuts with BSPT threads?<br data-start=\"5781\" data-end=\"5784\" \/><strong data-start=\"5787\" data-end=\"5793\">A:<\/strong> Yes, we manufacture BSP, BSPT, NPT, and Metric threads.<\/p>\n<\/li>\n<li class=\"\" data-start=\"5851\" data-end=\"5986\">\n<p class=\"\" data-start=\"5854\" data-end=\"5986\"><strong data-start=\"5854\" data-end=\"5860\">Q:<\/strong> What is your MOQ for Back Nuts?<br data-start=\"5892\" data-end=\"5895\" \/><strong data-start=\"5898\" data-end=\"5904\">A:<\/strong> Our MOQ starts from 5,000 pieces, but we also support trial runs for new clients.<\/p>\n<\/li>\n<li class=\"\" data-start=\"5988\" data-end=\"6136\">\n<p class=\"\" data-start=\"5991\" data-end=\"6136\"><strong data-start=\"5991\" data-end=\"5997\">Q:<\/strong> Are these Back Nuts safe for drinking water use?<br data-start=\"6046\" data-end=\"6049\" \/><strong data-start=\"6052\" data-end=\"6058\">A:<\/strong> Yes, we offer Lead-Free and DZR Brass compliant with potable water standards.<\/p>\n<\/li>\n<li class=\"\" data-start=\"6138\" data-end=\"6262\">\n<p class=\"\" data-start=\"6141\" data-end=\"6262\"><strong data-start=\"6141\" data-end=\"6147\">Q:<\/strong> Do you offer third-party inspection?<br data-start=\"6184\" data-end=\"6187\" \/><strong data-start=\"6190\" data-end=\"6196\">A:<\/strong> Yes, we welcome inspection by SGS, TUV, or your preferred agency.<\/p>\n<\/li>\n<li class=\"\" data-start=\"6264\" data-end=\"6369\">\n<p class=\"\" data-start=\"6267\" data-end=\"6369\"><strong data-start=\"6267\" data-end=\"6273\">Q:<\/strong> Can you laser engrave our logo?<br data-start=\"6305\" data-end=\"6308\" \/><strong data-start=\"6311\" data-end=\"6317\">A:<\/strong> Absolutely, logo engraving or stamping can be done.<\/p>\n<\/li>\n<li class=\"\" data-start=\"6371\" data-end=\"6482\">\n<p class=\"\" data-start=\"6374\" data-end=\"6482\"><strong data-start=\"6374\" data-end=\"6380\">Q:<\/strong> What\u2019s your lead time for repeat orders?<br data-start=\"6421\" data-end=\"6424\" \/><strong data-start=\"6427\" data-end=\"6433\">A:<\/strong> Typically 4 weeks, subject to volume and finish.<\/p>\n<\/li>\n<li class=\"\" data-start=\"6484\" data-end=\"6607\">\n<p class=\"\" data-start=\"6487\" data-end=\"6607\"><strong data-start=\"6487\" data-end=\"6493\">Q:<\/strong> Do you export to the USA?<br data-start=\"6519\" data-end=\"6522\" \/><strong data-start=\"6525\" data-end=\"6531\">A:<\/strong> Yes, we have long-term customers in the USA and comply with ASTM standards.<\/p>\n<\/li>\n<li class=\"\" data-start=\"6609\" data-end=\"6746\">\n<p class=\"\" data-start=\"6612\" data-end=\"6746\"><strong data-start=\"6612\" data-end=\"6618\">Q:<\/strong> Can I get a few samples before order?<br data-start=\"6656\" data-end=\"6659\" \/><strong data-start=\"6662\" data-end=\"6668\">A:<\/strong> Yes, samples are provided against courier charges or with order confirmation.<\/p>\n<\/li>\n<li class=\"\" data-start=\"6748\" data-end=\"6897\">\n<p class=\"\" data-start=\"6751\" data-end=\"6897\"><strong data-start=\"6751\" data-end=\"6757\">Q:<\/strong> Are these suitable for solar applications?<br data-start=\"6800\" data-end=\"6803\" \/><strong data-start=\"6806\" data-end=\"6812\">A:<\/strong> Yes, we supply corrosion-resistant Brass Back Nuts for solar panel mounting systems.<\/p>\n<\/li>\n<li class=\"\" data-start=\"6899\" data-end=\"7028\">\n<p class=\"\" data-start=\"6903\" data-end=\"7028\"><strong data-start=\"6903\" data-end=\"6909\">Q:<\/strong> Do you have ROHS compliant versions?<br data-start=\"6946\" data-end=\"6949\" \/><strong data-start=\"6953\" data-end=\"6959\">A:<\/strong> Yes, we offer ROHS &amp; REACH-compliant Back Nuts for European markets.<\/p>\n<\/li>\n<\/ol>\n<p class=\"\" data-start=\"7030\" data-end=\"7051\"><strong data-start=\"7030\" data-end=\"7051\">Glossary of Terms<\/strong><\/p>\n<ul data-start=\"7053\" data-end=\"7379\">\n<li class=\"\" data-start=\"7053\" data-end=\"7092\">\n<p class=\"\" data-start=\"7055\" data-end=\"7092\"><strong data-start=\"7055\" data-end=\"7063\">BSP:<\/strong> British Standard Pipe thread<\/p>\n<\/li>\n<li class=\"\" data-start=\"7093\" data-end=\"7138\">\n<p class=\"\" data-start=\"7095\" data-end=\"7138\"><strong data-start=\"7095\" data-end=\"7103\">NPT:<\/strong> National Pipe Thread (US Standard)<\/p>\n<\/li>\n<li class=\"\" data-start=\"7139\" data-end=\"7228\">\n<p class=\"\" data-start=\"7141\" data-end=\"7228\"><strong data-start=\"7141\" data-end=\"7155\">DZR Brass:<\/strong> Dezincification Resistant Brass suitable for aggressive water conditions<\/p>\n<\/li>\n<li class=\"\" data-start=\"7229\" data-end=\"7302\">\n<p class=\"\" data-start=\"7231\" data-end=\"7302\"><strong data-start=\"7231\" data-end=\"7249\">CNC Machining:<\/strong> Computer Numerical Control based precision machining<\/p>\n<\/li>\n<li class=\"\" data-start=\"7303\" data-end=\"7379\">\n<p class=\"\" data-start=\"7305\" data-end=\"7379\"><strong data-start=\"7305\" data-end=\"7326\">Electropolishing:<\/strong> Electrochemical process for polishing metal surfaces<\/p>\n<\/li>\n<\/ul>\n<p>Looking for reliable Brass Back Nut suppliers?<\/p>\n<p><strong data-start=\"7849\" data-end=\"7874\">Request a quote today<\/strong>, <strong data-start=\"7876\" data-end=\"7911\">email us for a product brochure<\/strong>, or <strong data-start=\"7916\" data-end=\"7952\">contact us via WhatsApp or phone<\/strong> for expert assistance. We\u2019re here to serve your custom requirements with precision and speed.<\/p>\n","protected":false},"featured_media":27067,"template":"","meta":[],"product_brand":[],"product_cat":[625],"product_tag":[],"class_list":{"0":"post-27065","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-raccords-tuyauterie-bronze","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Contre-\u00c9crous<\/title>\n<meta name=\"description\" content=\"Manufacturer and exporter of premium quality Brass Back Nuts from India. Custom sizes, BSP\/NPT threads, compliant with ASTM, BS standards. Quick turnaround, 30+ years of global experience.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/conexmetals.com\/fr\/product\/contre-ecrous\/\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/product\\\/contre-ecrous\\\/\",\"url\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/product\\\/contre-ecrous\\\/\",\"name\":\"Contre-\u00c9crous\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/product\\\/contre-ecrous\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/product\\\/contre-ecrous\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/conexmetals.com\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/Back-Nuts.jpg\",\"datePublished\":\"2023-08-18T07:54:46+00:00\",\"dateModified\":\"2026-06-28T16:22:33+00:00\",\"description\":\"Manufacturer and exporter of premium quality Brass Back Nuts from India. Custom sizes, BSP\\\/NPT threads, compliant with ASTM, BS standards. Quick turnaround, 30+ years of global experience.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/product\\\/contre-ecrous\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/conexmetals.com\\\/fr\\\/product\\\/contre-ecrous\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/product\\\/contre-ecrous\\\/#primaryimage\",\"url\":\"https:\\\/\\\/conexmetals.com\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/Back-Nuts.jpg\",\"contentUrl\":\"https:\\\/\\\/conexmetals.com\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/Back-Nuts.jpg\",\"width\":350,\"height\":350},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/product\\\/contre-ecrous\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/accueil\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Products\",\"item\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/products\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Contre-\u00c9crous\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/#website\",\"url\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/\",\"name\":\"Conex Metals Brass Fittings Brass Parts Copper Parts Brass Components Brass Plumbing Fittings India\",\"description\":\"Manufacturer of Bronze Fittings casting Copper Brass parts components\",\"publisher\":{\"@id\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/#organization\",\"name\":\"Conex Metals\",\"url\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/conexmetals.com\\\/wp-content\\\/uploads\\\/2024\\\/03\\\/conex-metals-logo.webp\",\"contentUrl\":\"https:\\\/\\\/conexmetals.com\\\/wp-content\\\/uploads\\\/2024\\\/03\\\/conex-metals-logo.webp\",\"width\":300,\"height\":121,\"caption\":\"Conex Metals\"},\"image\":{\"@id\":\"https:\\\/\\\/conexmetals.com\\\/fr\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/conexbrass\",\"https:\\\/\\\/x.com\\\/conexindia\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/conex-metals-india\\\/\",\"https:\\\/\\\/www.instagram.com\\\/conexindia\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Contre-\u00c9crous","description":"Manufacturer and exporter of premium quality Brass Back Nuts from India. Custom sizes, BSP\/NPT threads, compliant with ASTM, BS standards. Quick turnaround, 30+ years of global experience.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/conexmetals.com\/fr\/product\/contre-ecrous\/","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/conexmetals.com\/fr\/product\/contre-ecrous\/","url":"https:\/\/conexmetals.com\/fr\/product\/contre-ecrous\/","name":"Contre-\u00c9crous","isPartOf":{"@id":"https:\/\/conexmetals.com\/fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/conexmetals.com\/fr\/product\/contre-ecrous\/#primaryimage"},"image":{"@id":"https:\/\/conexmetals.com\/fr\/product\/contre-ecrous\/#primaryimage"},"thumbnailUrl":"https:\/\/conexmetals.com\/wp-content\/uploads\/2023\/11\/Back-Nuts.jpg","datePublished":"2023-08-18T07:54:46+00:00","dateModified":"2026-06-28T16:22:33+00:00","description":"Manufacturer and exporter of premium quality Brass Back Nuts from India. Custom sizes, BSP\/NPT threads, compliant with ASTM, BS standards. Quick turnaround, 30+ years of global experience.","breadcrumb":{"@id":"https:\/\/conexmetals.com\/fr\/product\/contre-ecrous\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/conexmetals.com\/fr\/product\/contre-ecrous\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/conexmetals.com\/fr\/product\/contre-ecrous\/#primaryimage","url":"https:\/\/conexmetals.com\/wp-content\/uploads\/2023\/11\/Back-Nuts.jpg","contentUrl":"https:\/\/conexmetals.com\/wp-content\/uploads\/2023\/11\/Back-Nuts.jpg","width":350,"height":350},{"@type":"BreadcrumbList","@id":"https:\/\/conexmetals.com\/fr\/product\/contre-ecrous\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/conexmetals.com\/fr\/accueil\/"},{"@type":"ListItem","position":2,"name":"Products","item":"https:\/\/conexmetals.com\/fr\/products\/"},{"@type":"ListItem","position":3,"name":"Contre-\u00c9crous"}]},{"@type":"WebSite","@id":"https:\/\/conexmetals.com\/fr\/#website","url":"https:\/\/conexmetals.com\/fr\/","name":"Conex Metals Brass Fittings Brass Parts Copper Parts Brass Components Brass Plumbing Fittings India","description":"Manufacturer of Bronze Fittings casting Copper Brass parts components","publisher":{"@id":"https:\/\/conexmetals.com\/fr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/conexmetals.com\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/conexmetals.com\/fr\/#organization","name":"Conex Metals","url":"https:\/\/conexmetals.com\/fr\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/conexmetals.com\/fr\/#\/schema\/logo\/image\/","url":"https:\/\/conexmetals.com\/wp-content\/uploads\/2024\/03\/conex-metals-logo.webp","contentUrl":"https:\/\/conexmetals.com\/wp-content\/uploads\/2024\/03\/conex-metals-logo.webp","width":300,"height":121,"caption":"Conex Metals"},"image":{"@id":"https:\/\/conexmetals.com\/fr\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/conexbrass","https:\/\/x.com\/conexindia","https:\/\/www.linkedin.com\/company\/conex-metals-india\/","https:\/\/www.instagram.com\/conexindia\/"]}]}},"_links":{"self":[{"href":"https:\/\/conexmetals.com\/fr\/wp-json\/wp\/v2\/product\/27065","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/conexmetals.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/conexmetals.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/conexmetals.com\/fr\/wp-json\/wp\/v2\/media\/27067"}],"wp:attachment":[{"href":"https:\/\/conexmetals.com\/fr\/wp-json\/wp\/v2\/media?parent=27065"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/conexmetals.com\/fr\/wp-json\/wp\/v2\/product_brand?post=27065"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/conexmetals.com\/fr\/wp-json\/wp\/v2\/product_cat?post=27065"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/conexmetals.com\/fr\/wp-json\/wp\/v2\/product_tag?post=27065"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}