Need Your Answer Fast?

Hex Head Cap Screws

Auto Bolt manufactures hexagon head bolts and cap screws to the customer’s print or specification, with a minimum order quantity of 2,500 pieces. Special dimensions, such as head heights, head types, and thread lengths, can be produced. Configurations are available in either inch or metric sizes. Special tooling can be created to produce nonstandard headmarks.

Size Ranges

Diameters: 1/4" – 1 1/8"
Lengths: 3/8" – 11 3/4"

Diameters: M6 – M24

Standard Materials

Carbon Steels: SAE 1008, 1010, 1018, 1038, 1541, and 10B21
Alloy Steels: SAE 1335, 4037, 4140, 5140, 8620, 8637, and 8740
Stainless Steels: 302, 304


Zinc, zinc yellow, phos & oil, black oxide, cadmium, and organics. Other coatings on request.


Auto Bolt manufactures certified quality products using industry standards such as ASTM, ASME, ANSI, SAE, ISO, and DIN.

hex head cap screws
hex head cap screws
hex head cap screws
Contact Us Today
sgs industrial fasteners institute proudly made in the usa