Made of high quality carbon steel, color zinc plated on the surface which, high hardness and perfect wear resistance.
Threaded inserts are easy to install, simply drill the appropriately sized hole and Install the inserts with hex key provided or other optional drive tools you have.
These wood threaded inserts are perfect for furniture manufacturing and repair, wood product manufacturing, art and crafts, wooden boat building, and more.
Internal Thread Size: 5/16"-18; External Diameter: 12.58mm; Total Length: 25mm.
Package Included: 25 PCS 5/16"-18 x 25mm Threaded Insert Nutsert; 1 PCS 8mm Allen Wrench.