Hex socket locking bolt locking screw Stainless steel (304/316) carbon steel alloy steel

Hex socket locking bolts, also known as hex socket cap screws, are a type of fastener with an internal hexagon drive in the head, requiring a hex key for installation.

Bolts for small hexagonal head reaming holes GB27-76 stainless steel (304/316) carbon steel

Small hexagon head bolts for reamed holes are a kind of mechanical parts, mainly characterized by their small hexagonal heads, which are suitable for use in reamed holes.