1/4"-20 x 1/2" Plain Steel Coarse Thread Insert Nuts (20 pcs.)

Diameter: 1/4"
Length: 1/2"
Material: Steel
Finish: Plain
Thread Size: 20 (Coarse)
Type: Insert Nut

Box of 20.

An insert nut provides a threaded socket for a wooden workpiece, similar to a wall anchor. Insert nuts are inserted into a pre-drilled hole by one of two means: screw in and hammer in. In both cases, the external protrusions bite into the wood, preventing the nut from either turning or pulling out. They can be installed from one side of the workpiece.