#4-40 x 3/16" Steel Coarse Thread Slotted Headless Set Screws

Diameter: #4
Length: 3/16"
Material: Steel
Head Style: Headless (Slotted)
Thread Size: 40 (Coarse)
Thread Length: Full
Type: Set Screw

Box of 20.

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.