Description
Eyebolt Terminal Connectors
Eyebolt terminal connectors, also known as eyelet or eye terminal connectors, are a type of electrical connector used in various applications, including power distribution systems, where they are used to create secure and reliable connections between components. These connectors have a loop or “eye” at one end, allowing them to be easily attached to bolts, studs, or terminals.
| Eyebolt Terminal Connectors | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Size | A | B | C | D | E | F | G | H | Wx | Wy | Wz | |
| Shank Dia | Shank Length | Eye ID | Nominal Eye OD | Eye Sect Dia | Overall Length | Min Length Full Thread | Thread Size UNC-2A | Safe Working Load, lb at 0 Deg1 | Safe Working Load, lb at 45 Deg1 | Safe Working Load, lb at 90 Deg1 | ||
| 1/4* | 0.25 | 0.25 | 1.00 | 0.69 | 1.19 | 0.19 | 2.06 | 0.75 | 1/4-20 or .250-20 | 400 | 80 | 60 |
| 0.28 | 1.06 | 0.81 | 0.25 | 2.38 | ||||||||
| 5/16* | 0.31 | 0.31 | 1.12 | 0.81 | 1.44 | 0.25 | 2.44 | 0.81 | 5/16-18 or .3125-18 | 800 | 160 | 120 |
| 0.34 | 1.19 | 0.94 | 0.31 | 2.75 | ||||||||
| 3/8* | 0.38 | 0.38 | 1.25 | 0.94 | 1.69 | 0.31 | 2.81 | 0.88 | 3/8-16 or .375-16 | 1400 | 280 | 210 |
| 0.41 | 1.38 | 1.06 | 0.38 | 3.19 | ||||||||
| 7/16 | 0.44 | 0.44 | 1.38 | 1.00 | 1.81 | 0.34 | 3.06 | 1.00 | 7/16-14 or .4375-14 | 2000 | 400 | 300 |
| 0.47 | 1.50 | 1.12 | 0.41 | 3.44 | ||||||||
| 1/2* | 0.50 | 0.50 | 1.50 | 1.12 | 2.12 | 0.44 | 3.50 | 1.12 | 1/2-13 or .500-13 | 2600 | 520 | 390 |
| 0.53 | 1.62 | 1.25 | 0.50 | 3.88 | ||||||||
| 9/16 | 0.56 | 0.56 | 1.62 | 1.19 | 2.25 | 0.47 | 3.75 | 1.25 | 9/16-12 or .5625-12 | 3000 | 600 | 450 |
| 0.59 | 1.75 | 1.31 | 0.53 | 4.12 | ||||||||
| 5/8* | 0.62 | 0.62 | 1.75 | 1.31 | 2.56 | 0.56 | 4.19 | 1.38 | 5/8-11 or .625-11 | 4000 | 800 | 600 |
| 0.66 | 1.88 | 1.44 | 0.62 | 4.56 | ||||||||
| 3/4* | 0.75 | 0.75 | 2.00 | 1.44 | 2.81 | 0.62 | 4.69 | 1.62 | 3/4-10 or .750-10 | 6000 | 1200 | 900 |
| 0.78 | 2.12 | 1.56 | 0.69 | 5.06 | ||||||||
| 7/8* | 0.88 | 0.88 | 2.25 | 1.56 | 3.19 | 0.75 | 5.31 | 1.81 | 7/8-9 or .875-9 | 6600 | 1300 | 1000 |
| 0.91 | 2.38 | 1.69 | 0.81 | 5.69 | ||||||||
| 1* | 1.00 | 1.00 | 2.50 | 1.69 | 3.56 | 0.88 | 5.94 | 2.06 | 1-8 or 1.000-8 | 8000 | 1600 | 1200 |
| 1.06 | 2.62 | 1.81 | 0.94 | 6.31 | ||||||||
| 1-1/8 | 1.12 | 1.12 | 2.75 | 1.94 | 4.06 | 1.00 | 6.69 | 2.31 | 1-1/8-7 or 1.125-7 | 10000 | 2000 | 1500 |
| 1.19 | 2.88 | 2.06 | 1.06 | 7.06 | ||||||||
| 1-1/4* | 1.25 | 1.25 | 3.00 | 2.12 | 4.44 | 1.09 | 7.31 | 2.50 | 1-1/4-7 or 1.250-7 | 15000 | 3000 | 2250 |
| 1.34 | 3.12 | 2.25 | 1.16 | 7.69 | ||||||||
| 1-1/2* | 1.50 | 1.50 | 3.50 | 2.44 | 5.19 | 1.31 | 8.56 | 3.00 | 1-1/2-6 or 1.500-6 | 18000 | 3600 | 2700 |
| 1.59 | 3.62 | 2.56 | 1.38 | 8.94 | ||||||||
| 1-3/4 | 1.75 | 1.75 | 3.75 | 2.75 | 6.00 | 1.50 | 9.50 | 3.19 | 1-3/4-5 or 1.750-5 | 22000 | 4400 | 3300 |
| 1.84 | 3.88 | 3.00 | 1.62 | 10.12 | ||||||||
| 2* | 2.00 | 2.00 | 4.00 | 3.06 | 6.88 | 1.75 | 10.56 | 3.38 | 2-4-1/2- or 2.000-4.50 | 26000 | 5200 | 3900 |
| 2.09 | 4.25 | 3.44 | 1.88 | 11.44 | ||||||||
| 2-1/2* | 2.50 | 2.50 | 5.00 | 3.81 | 8.50 | 2.19 | 13.19 | 4.25 | 2-1/2-4 or 2.500-4 | 32000 | 6400 | 4800 |
| 2.62 | 5.25 | 4.19 | 2.31 | 14.06 | ||||||||
Type 2 Shoulder Pattern Eyebolts
| Type 2 Shoulder Pattern Eyebolts | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Size | A | B | C | D | E | F | G | H | J | K | L | R | Wx | Wy | Wz | |
| Shank Dia | Shank Length | Eye ID | Nominal Eye OD | Eye Sect Dia | Overall Length | Min Length Full Thread | Thread Size UNC-2A | Centerline Eye to Shoulder | Shoulder Dia | Shoulder Height | Radius Under Shoulder | Safe Working1 Load, lb at | ||||
| 0° | 45° | 90° | ||||||||||||||
| 1/4* | 0.25 | 0.25 | 1.00 | 0.69 | 1.19 | 0.19 | 2.22 | 0.75 | 1/4-20 or .250-20 | 0.69 | 0.50 | 0.12 | 0.015 | 400 | 100 | 80 |
| 0.28 | 1.06 | 0.81 | 0.25 | 2.53 | 0.81 | 0.56 | 0.19 | 0.025 | ||||||||
| 5/16* | 0.31 | 0.31 | 1.12 | 0.81 | 1.44 | 0.25 | 2.66 | 0.81 | 5/16-18 or .3125-18 | 0.88 | 0.56 | 0.12 | 0.015 | 800 | 200 | 160 |
| 0.34 | 1.19 | 0.94 | 0.31 | 2.97 | 1.00 | 0.62 | 0.19 | 0.025 | ||||||||
| 3/8* | 0.38 | 0.38 | 1.25 | 0.94 | 1.69 | 0.31 | 3.09 | 0.88 | 3/8-16 or .375-16 | 1.06 | 0.62 | 0.12 | 0.015 | 1400 | 350 | 280 |
| 0.41 | 1.38 | 1.06 | 0.38 | 3.47 | 1.19 | 0.69 | 0.19 | 0.025 | ||||||||
| 7/16 | 0.44 | 0.44 | 1.38 | 1.00 | 1.81 | 0.34 | 3.41 | 1.00 | 7/16-14 or .4375-14 | 1.19 | 0.75 | 0.19 | 0.015 | 2000 | 500 | 400 |
| 0.47 | 1.50 | 1.12 | 0.41 | 3.78 | 1.31 | 0.81 | 0.25 | 0.025 | ||||||||
| 1/2* | 0.50 | 0.50 | 1.50 | 1.12 | 2.12 | 0.44 | 3.81 | 1.12 | 1/2-13 or .500-13 | 1.31 | 0.88 | 0.19 | 0.015 | 2600 | 650 | 520 |
| 0.53 | 1.62 | 1.25 | 0.50 | 4.19 | 1.44 | 0.94 | 0.25 | 0.025 | ||||||||
| 9/16 | 0.56 | 0.56 | 1.62 | 1.19 | 2.25 | 0.47 | 4.19 | 1.25 | 9/16-12 or .5625-12 | 1.50 | 0.94 | 0.22 | 0.020 | 3000 | 750 | 600 |
| 0.59 | 1.75 | 1.31 | 0.53 | 4.56 | 1.62 | 1.00 | 0.28 | 0.045 | ||||||||
| 5/8* | 0.62 | 0.62 | 1.75 | 1.31 | 2.56 | 0.56 | 4.56 | 1.38 | 5/8-11 or .625-11 | 1.59 | 1.00 | 0.25 | 0.020 | 4000 | 1000 | 800 |
| 0.66 | 1.88 | 1.44 | 0.62 | 4.94 | 1.72 | 1.06 | 0.31 | 0.045 | ||||||||
| 3/4* | 0.75 | 0.75 | 2.00 | 1.44 | 2.81 | 0.62 | 5.06 | 1.62 | 3/4-10 or .750-10 | 1.72 | 1.12 | 0.25 | 0.020 | 6000 | 1500 | 1200 |
| 0.78 | 2.12 | 1.56 | 0.69 | 5.50 | 1.91 | 1.25 | 0.31 | 0.045 | ||||||||
| 7/8* | 0.88 | 0.88 | 2.25 | 1.56 | 3.19 | 0.75 | 5.75 | 1.81 | 7/8-9 or .875-9 | 2.03 | 1.31 | 0.31 | 0.040 | 6600 | 1670 | 1330 |
| 0.91 | 2.38 | 1.69 | 0.81 | 6.19 | 2.22 | 1.44 | 0.38 | 0.065 | ||||||||
| 1* | 1.00 | 1.00 | 2.50 | 1.69 | 3.56 | 0.88 | 6.44 | 2.06 | 1-8 or 1.000-8 | 2.22 | 1.50 | 0.38 | 0.060 | 8000 | 2000 | 1600 |
| 1.06 | 2.62 | 1.81 | 0.94 | 6.88 | 2.41 | 1.62 | 0.44 | 0.095 | ||||||||
| 1-1/8 | 1.12 | 1.12 | 2.75 | 1.94 | 4.06 | 1.00 | 7.31 | 2.31 | 1-1/8-7 or 1.125-7 | 2.59 | 1.69 | 0.44 | 0.060 | 10000 | 2500 | 2000 |
| 1.19 | 2.88 | 2.06 | 1.06 | 7.75 | 2.78 | 1.81 | 0.50 | 0.095 | ||||||||
| 1-1/4* | 1.25 | 1.25 | 3.00 | 2.12 | 4.44 | 1.09 | 8.00 | 2.50 | 1-1/4-7 or 1.250-7 | 2.84 | 1.88 | 0.50 | 0.060 | 15000 | 3750 | 3000 |
| 1.34 | 3.12 | 2.25 | 1.16 | 8.44 | 3.03 | 2.00 | 0.56 | 0.095 | ||||||||
| 1-1/2* | 1.50 | 1.50 | 3.50 | 2.44 | 5.19 | 1.31 | 9.22 | 3.00 | 1-1/2-6 or 1.500-6 | 3.19 | 2.12 | 0.50 | 0.060 | 18000 | 4500 | 3600 |
| 1.59 | 3.62 | 2.56 | 1.38 | 9.72 | 3.44 | 2.25 | 0.62 | 0.095 | ||||||||
| 1-3/4 | 1.75 | 1.75 | 3.75 | 2.75 | 6.00 | 1.50 | 10.50 | 3.19 | 1-3/4-5 or 1.750-5 | 3.88 | 2.50 | 0.50 | 0.060 | 22000 | 5500 | 4400 |
| 1.84 | 3.88 | 3.00 | 1.62 | 11.12 | 4.12 | 2.62 | 0.62 | 0.095 | ||||||||
| 2* | 2.00 | 2.00 | 4.00 | 3.06 | 6.88 | 1.75 | 11.53 | 3.38 | 2-4-1/2- or 2.000-4.50 | 4.25 | 2.88 | 0.62 | 0.060 | 26000 | 6500 | 520 |
| 2.09 | 4.12 | 3.44 | 1.88 | 12.22 | 4.50 | 3.00 | 0.75 | 0.095 | ||||||||
Here are some key points about eyebolt terminal connectors and their applications:
Design and Function: Eyebolt terminal connectors consist of a metal terminal with a hole or loop at one end, resembling an eye. The other end is typically crimped or soldered onto a wire or cable. The looped end can then be fastened onto bolts, studs, or other threaded components using a nut. This design ensures a secure connection while also providing the flexibility to be easily removed or replaced when necessary.
Applications: Eyebolt terminal connectors find use in various electrical and electronic applications, including:
- Power Distribution Systems:They can be used in power distribution systems to connect power cables, conductors, or wires to terminals on transformers, circuit breakers, switchgear, or other components.
- Grounding and Bonding:Eyebolt connectors are often used in grounding and bonding applications to establish a reliable electrical connection between equipment and grounding conductors, ensuring safety and proper grounding of electrical systems.
- Electrical Panels:These connectors can be used in electrical panels and control cabinets to connect wires to terminal blocks or busbars.
- Battery Connections:Eyebolt terminals are commonly used to connect battery cables to battery terminals in automotive, marine, and industrial battery applications.
- Industrial and Machinery Wiring:In industrial settings, eyebolt connectors can be used to establish connections in machinery, control panels, and equipment wiring.
- Renewable Energy Systems:They are used in renewable energy systems such as solar and wind power installations to connect cables and wires to inverters, charge controllers, and other components.
Materials: Eyebolt terminal connectors are typically made from metals such as Copper, Aluminium, or Brass, which offer good conductivity and corrosion resistance. The choice of material depends on the specific application and environmental conditions.
