
Description
Description
These 4-40 x 5/16 inch machine screws are a solid choice for fastening jobs where a clean, flush finish matters. The flat 100 degree head is designed to sit neatly in a countersunk hole, helping create a smooth surface once installed.
Made from steel, these screws provide dependable strength for use in machinery, electronics, and general assembly work. The black oxide finish gives them a dark matte look and adds light corrosion resistance, making them a good fit for indoor applications or lightly protected environments.
The Phillips drive allows for quick installation with standard screwdrivers or power tools. Designed for use with a nut or tapped hole, these machine screws offer a secure and reliable hold for a wide range of repair and assembly tasks.