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 | ||
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Inches | Metric | |
Diameter Range | 5/16" – 1 1/8" | M8 – M27 |
Length Range | 3/8" – 11 3/4" |
Standard Materials | |
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Description | |
Carbon Steels | SAE 1008, 1010, 1018, 1038, 1335, 1541, and 10B21 |
Alloy Steels | SAE 4037, 4140, 5140, 8620, 8637, and 8740 |
Coatings | |
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Options | Zinc, zinc yellow, phos & oil, black oxide, cadmium, and organics. Other coatings on request. |
Manufacturing | |
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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. |