Hex Socket Head Cap Screw

The hexagonal head of the hex socket head cap screw is a recessed hexagon with a rounded outer edge. It is tightened with a hexagonal wrench. It has a long service life and can be used for a long time, saving replacement costs and low maintenance costs. The hexagonal screw can be reused, disassembled and reassembled without stripping the threads, which is very suitable for prototypes or modular settings. The screws are strong and can be applied flexibly. Xiaoguo® has multiple certifications and is a professional and honest supplier.

Certification

Decent hex socket head cap screws stick to international certs like ISO 9001, RoHS, and REACH,they’re safe and eco-friendly. If they’re for planes, they’ll need aerospace certs like AS9100 or NADCAP; car parts require IATF 16949. These badges basically tell you the screws use tough materials, are sized right, and won’t fail when things get tough. Need them for critical stuff? Just ask us for paperwork like test reports or material certs.

Material selection

Q:What materials are hex socket head cap screws typically made from, and how do they affect performance?

A:Hex socket head cap screws come in a few tough materials：alloy steel (grades 8.8, 10.9, 12.9), stainless steel (304 or 316), or titanium. What you pick basically decides three things: how long they last, how well they fight rust, and how much weight they can take. If you’re working somewhere damp or rusty, stainless steel’s your best bet. Need screws for heavy machinery? Higher-grade alloy steel (like 10.9 or 12.9) is stronger. They also heat-treat these screws (like quenching and tempering) to make them tougher. Bottom line: think about where you’ll use them and how much strain they’ll get. Match the material to the job.