Fast Free Shipping

4-40 x 1/2" Slotted Truss Head Machine Screws Stainless Steel 18-8 Qty 100

UPC: 842176141169
Thread Size: 4-40
Thread Diameter: 0.112"
Nut Height: 1/2"
Nut Width Flats: 0.5"
Thread Length: 1/2"
Thread Length Decimal: 0.5"
Fastener Thread Count (TPI): 40
Thread Coverage: Full Thread
Head Diameter: 0.257"
Head Height: 0.069"
Drive Size: 3/16"
Material Type: Stainless Steel 18-8
Thread Type: Inch
Thread Style: Coarse
Thread Direction: Right Hand
Screw Head Style: Truss
Drive Style: Slotted

A Truss head screw has a head with flat underside and a slightly domed top. It has almost no exposed edge. Machine Screws have with "machine" threads for use with a nut or in a tapped hole. Machine screws are often used with nuts but also often driven into tapped holes (without nuts). They might be considered a screw or a bolt based on the Machinery's Handbook distinction. In practice, they tend to be mostly available in smaller sizes and the smaller sizes are referred to as screws or less ambiguously as machine screws, although some kinds of machine screw can be referred to as stove bolts.