Machine Screw - Slotted Truss Head - Black Zinc Steel - 1/4"-20 Thread - 1/2" Long - Pack of 2000

Machine screws are generally used to fasten metal parts together in various types of machinery, automotive, and construction applications. Machine screws are typically used with a pre-tapped hole or with a nut. The truss head has a curved surface, extra-wide profile, and a lower profile than most pan head screws. The extra-wide top helps prevent the screw from going through the drilled surface. The slotted drive has a straight-line notch grooved into the surface the head and is designed to be used with flat-headed screwdrivers. Black zinc-plated steel offers good corrosion resistance in applications not exposed to excessive moisture and provides anti-galling properties.