Machine Screw - Phillips Drive Flat Undercut Head - Black Oxide 18-8 Stainless Steel - 10-24 Thread - 5/16" Long - Pack of 4000

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 flat undercut head is similar to the standard flat head but has a shorter head, providing the screw with a longer thread than a standard flat head screw of the same length. The phillips drive has a cross-shaped indent for use with a Phillips screwdriver. 18-8 stainless steel, also commonly known as 304 or A2 stainless steel, has good chemical resistance and may be mildly magnetic. The black oxide coating greatly reduces the risk of hydrogen embrittlement.