#4-40 x 1-1/2" Zinc Slotted Round Head Machine Screws (72 pcs.)

Diameter: #4
Length: 1-1/2"
Material: Steel
Finish: Zinc
Head Style: Round (Slotted)
Thread Size: 40 (Coarse)
Thread Length: Full
Type: Machine Screw

Box of 72.

A machine screw, also called a stove bolt, is generally a smaller fastener threaded the entire length of its shank. Machine screws are used in fastening nearly all types of hard materials. Especially useful in metal-to-metal or where heavy duty fastening is required. Commonly used with flat or lockwashers.