#4-40 x 1-1/2 18-8 Stainless Phillips Flat Machine Screws MSFSS-158 (20 pcs.)

Diameter: #4 Length: 1-1/2 Material: Stainless Steel Head Style: Flat (Phillips) Thread Size: 40 (Coarse) Thread Length: Full Hardness: 18-8 Type: Machine Screw Box of 20. 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.