A 12-point bolt offers the same bearing surface as a hex head cap screw or socket head screw of equivalent sizes. The external drive provides tighter wrenching with a larger gripping surface to offer more torque. Special dimension can be manufactured to meet your needs in inch or metric sizes.
Please note: 12-point bolts are generally made from alloy steels. However, they can be made from different materials based upon customer requirement.
| Size Ranges | ||
|---|---|---|
| Inches | Metric | |
| Diameter Range | 5/16" – 1 1/8" | M8 – M27 |
| Length Range | 3/8" – 11 3/4" |
| Standard Materials | |
|---|---|
| Description | |
| Carbon Steels | SAE 1008, 1010, 1018, 1038, 1335, 1541, and 10B21 |
| Alloy Steels | SAE 4037, 4140, 5140, 8620, 8637, and 8740 |
| Coatings | |
|---|---|
| Options | Zinc, zinc yellow, phos & oil, black oxide, cadmium, and organics. Other coatings on request. |
| Manufacturing | |
|---|---|
| Standards | Auto Bolt manufactures certified quality products using industry standards such as ASTM, ASME, ANSI, SAE, ISO, and DIN. |
| Order Quantity | In many instances we are able to manufacture 2,500 pieces, depending on the diameter and geometry of the part. |