1/2"-13 x 3/8" Steel Coarse Thread Hex Socket Headless Set Screws

Diameter: 1/2"
Length: 3/8"
Material: Steel
Head Style: Headless (Hex)
Thread Size: 13 (Coarse)
Thread Length: Full
Style: Socket
Type: Set Screw

Box of 8.

A set screw is a type of screw generally used to secure an object within or against another object, normally not using a nut. The most common examples are securing a pulley or gear to a shaft.