Fast Free Shipping

4-40 x 1/2" Flat Head Socket Cap Screws Stainless Steel 18-8 Qty 100

$6.34
UPC: 842176117928
Thread Size: 4-40
Thread Diameter: 0.112"
Thread Length: 1/2"
Thread Length Decimal: 0.417"
Fastener Thread Count (TPI): 40
Thread Coverage: Full Thread
Head Diameter: 0.223"
Head Height: 0.078"
Drive Size: 1/16"
Material Type: Stainless Steel 18-8
Thread Type: Inch
Thread Style: Coarse
Thread Direction: Right Hand
Screw Head Style: Flat
Drive Style: Allen Hex Key

The stainless steel socket cap screw has a plain finish and a flat head with an internal hex drive. Stainless steel resists corrosion and may be magnetic. The flat head is cone shaped for use in countersunk holes and has a flat top that fits flush with the mated surface. The internal hex drive, also known as a hex-socket drive, has a hexagonal slot that requires an Allen key driver, also known as a hex key or Allen wrench. Socket cap screws are threaded fasteners that have a cap head with an internal socket drive for installing in areas with limited side clearance. These screws are available with a variety of head shapes, which determine how the screw interacts with the mating surface, and drive styles, which determine the type of tool required to install the screw.