Bronze Hex Bolts & Silicon Bronze Bolts
Conex Metals is one of the leading manufacturers and exporters of Bronze fasteners like Bronze Hex Bolts and Silicon Bronze Bolts Phosphor Bronze Bolts and Phosphor Bronze Screws from India. We have been supplying high-quality Bronze Fasteners like Bronze nuts, bronze Bolts, bronze threaded studs, Bronze machined parts etc. to the world market for many decades. Our expertise in metallurgy, precision machining, and strict quality control ensures that every bolt meets international standards and exceeds customer expectations. Bronze Bolts offer excellent corrosion resistance, strength, and longevity, making them ideal for marine, electrical, and industrial applications. Whether you need standard or custom Bronze fasteners, Phosphor Bronze fasteners, Silicon Bronze fasteners, we deliver high-performance engineering solutions tailored to your exact specifications.
Overview Bronze Hex Bolts and Silicon Bronze Bolts are engineered for high-strength and corrosion-resistant applications. These fasteners provide excellent electrical conductivity, superior mechanical properties, and exceptional resistance to saltwater and harsh environments. They are widely used in marine, electrical, and industrial applications where durability and performance are critical.
Material Grades Our Bronze Bolts, Phosphor Bronze Bolts, Silicon Bronze Bolts are manufactured using high-grade materials, ensuring durability and compliance with global standards:
| Material | Grade | Standards |
|---|---|---|
| Silicon Bronze | C65100, C65500 | ASTM B98, ASTM F468 |
| Phosphor Bronze | C51000, C52100 | ASTM B139 |
| Aluminium Bronze | C63000 | ASTM B150 |
| Naval Bronze | C46400 | ASTM B21 |
Manufacturing Process Our precision manufacturing process ensures that each bolt meets stringent quality standards. The steps involved are:
- Raw Material Selection – Premium-grade Bronze alloys sourced from reputed suppliers.
- Hot Forging or Cold Heading – Shaping the bolt to required dimensions.
- Precision Machining – CNC turning, milling, and threading for accurate dimensions.
- Heat Treatment – Enhancing mechanical properties and stress relief.
- Surface Finishing – Anti-corrosion coatings and polishing for longevity.
- Inspection & Testing – Quality checks, tensile tests, hardness tests, and dimensional inspections.
- Custom Packaging & Dispatch – Packed as per customer requirements with labeling and branding.
Machinery Used We utilize state-of-the-art machinery to ensure precision manufacturing:
- CNC Lathes
- Automatic Thread Rolling Machines
- Hot Forging Press
- Heat Treatment Furnaces
- Coordinate Measuring Machines (CMM) for Quality Inspection
- Spectrometers for Material Composition Analysis
Typical Parts Produced
- Hex Head Bolts
- Socket Head Bolts
- Carriage Bolts
- U-Bolts
- Stud Bolts
- Machine Screws
- Anchor Bolts
Industries Using Bronze & Silicon Bronze Bolts
- Marine Industry – Corrosion-resistant fasteners for ships and offshore platforms.
- Electrical Industry – High-conductivity fasteners for grounding applications.
- Oil & Gas Industry – Used in pipelines and equipment exposed to corrosive environments.
- Construction & Architecture – Structural fastening in bridges and heritage buildings.
- Aerospace Industry – Lightweight, strong fasteners for aircraft applications.
Tolerances Our Bronze Bolts are manufactured to tight tolerances:
- Thread Tolerance: ISO 965-1 / ANSI B1.1
- Dimensional Tolerance: ±0.02 mm
- Surface Finish: Ra 1.6 – 3.2 μm
Turnaround Time Standard production lead time is 4 to 6 weeks, depending on the order quantity and custom requirements. Expedited production available upon request.
Performance Metrics
| Property | Silicon Bronze (C65500) |
| Tensile Strength | 550 MPa |
| Yield Strength | 260 MPa |
| Elongation | 25% |
| Electrical Conductivity | 15% IACS |
| Hardness (Brinell) | 100-150 HB |
Bolt Thread Dimensions & Head Sizes (ASTM & DIN Standards)
ASTM Standard Bolt Dimensions
| Bolt Thread (inches) | Head Hex Size (ASTM) | Head Thickness (ASTM) |
|---|---|---|
| 1/4″ | 7/16″ | 5/32″ |
| 5/16″ | 1/2″ | 3/16″ |
| 3/8″ | 9/16″ | 15/64″ |
| 7/16″ | 5/8″ | 9/32″ |
| 1/2″ | 3/4″ | 5/16″ |
| 5/8″ | 15/16″ | 25/64″ |
| 3/4″ | 1-1/8″ | 15/32″ |
DIN Standard Bolt Dimensions
| Bolt Thread (mm) | Head Hex Size (DIN) | Head Thickness (DIN) |
| M6 | 10 mm | 4 mm |
| M8 | 13 mm | 5.3 mm |
| M10 | 17 mm | 6.4 mm |
| M12 | 19 mm | 7.5 mm |
| M16 | 24 mm | 10 mm |
| M20 | 30 mm | 12.5 mm |
| M24 | 36 mm | 15 mm |
Frequently Asked Questions (FAQs)
- What are the benefits of Silicon Bronze Bolts and Phosphor Bronze Bolts?
- High corrosion resistance, excellent strength, and superior electrical conductivity.
- Are Bronze Hex Bolts Phosphor Bronze Bolts and Silicon Bronze Bolts suitable for marine environments?
- Yes, they are highly resistant to saltwater corrosion.
- Do you offer custom sizes of Bronze Hex Bolts Phosphor Bronze Bolts and Silicon Bronze Bolts ?
- Yes, we manufacture bolts to customer specifications.
- Which standards do your bolts comply with?
- ASTM B98, ASTM F468, DIN, ISO, and more.
- Can I get a sample before placing a bulk order?
- Yes, samples are available upon request.
- What thread types are available?
- UNC, UNF, Metric, and Custom Threads.
- How do you ensure quality of Bronze Hex Bolts Phosphor Bronze Bolts and Silicon Bronze Bolts ?
- 100% inspection, material certification, and batch traceability.
- Do you provide surface coatings?
- Yes, including tin plating, nickel plating, and PTFE coating.
- What packaging options do you offer for Bronze Bolts and fasteners?
- Standard export packaging, custom labeling, and wooden cases.
- How do I place an order?
- Contact us via email, phone, or WhatsApp for a quote.
Request a Quote Today on Bronze Bolts and Bronze Fasteners! For inquiries, quotations, and custom orders, contact us by an email.
Description: Conex is a leading Indian manufacturer and supplier of high-quality Bronze Hex Bolts, Phosphor Bronze Bolts, and Silicon Bronze Bolts. We offer Bronze fasteners Phosphor Bronze fasteners, Silicon Bronze fasteners . Our Corrosion-resistant, high-strength bronze Bolts and Bronze fasteners are for marine, electrical, construction, and industrial applications. Custom sizes are available.
