Change inch threads to metric with these adapters, or swap metric threads for inch. An external hex lets you tighten or loosen them with a wrench.

Connect two differently sized male-threaded parts, such as threaded rods, and tighten with a standard wrench.

A black-phosphate finish provides mild corrosion resistance.

A distorted thread grips the screw to resist loosening.

Inserts come with a through-hole tap and installation tool.

Without a prong to break off and retrieve, these inserts are often used where debris could cause damage.

A black-phosphate finish provides mild corrosion resistance.

These inserts are made to stringent military specifications.

Forming the strongest hold of any of our threaded inserts, these inserts have a distorted internal thread to lock screws into place and keys that drive into surrounding material to prevent slipping and rotating.

The tapered shape makes it easier to guide these inserts into a hole during installation. Use a drill bit to create a straight hole, then taper the top half.

These 18-8 stainless steel inserts have excellent resistance to chemicals and may be mildly magnetic.