Set screws thread fully into a component and are tightened against a shaft or mating part to prevent rotational or lateral movement, often without a visible head.

Diameter: 5/16"
Length: 1"
Material: Steel
Head Style: Headless (Slotted)
Thread Size: 18 (Coarse)
Thread Length: Full
Type: Set Screw
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.