Hex Socket Head Cap Screws

The hex socket head cap screws has a hexagonal groove on the top, is corrosion-resistant, easy to install, and can withstand higher loads than ordinary screws. It can be used in machinery, electronic equipment, transportation, furniture and many other places.

Hex socket head cap screws follow standards like ISO 4762 for metric sizes or ASME B18.3 for imperial ones. Their diameters go from M1.6 up to M64, and lengths can be as long as 300mm. Threads can be coarse (for everyday use) or fine (for precise adjustments). If you need custom screws, you can get non-standard lengths, special shoulder designs, or drives that prevent tampering. We have detailed tech charts that list torque limits, shear strength, and which parts they work with. Always check the sizes against your project’s blueprints to make sure the screws fit your exact needs.

Features

Hex socket head cap screws get coatings to make them last. Zinc plating fights rust, hot-dip galvanizing (dipped in zinc) holds up better outside, and Dacromet handles high heat. Black oxide reduces glare and looks cleaner while adding a little rust protection. For food factories or chemical-heavy spots, passivated screws fight rust and won’t leave nasty stuff behind. Coatings such as PTFE or Xylan allow components to glide more smoothly, reducing friction between moving parts.Basically, pick the coating based on where the screw’s going,it’ll keep things running smoother in whatever job you throw at it.

Quality standards

Q:Are hex socket head cap screws compliant with international standards like ISO or DIN?

A:Hex socket head cap screws stick to global standards like ISO 4762 (metric) or DIN 912 (imperial). These rules basically make sure the screws are the right size and they’ll work consistently. Following them also means they’ll fit with tools and parts everyone uses. For certain jobs,like cars (ISO/TS 16949) or boat stuff (ASTM F593),there are extra certifications that cover things like rust-proofing or where the metal’s sourced from. When picking these screws, just check what standard your project needs (like ASME B18.3 in the U.S.) to match local regulations or your project’s specs. Keep it simple: standards = no surprises.