Midwest Fastener #4-40 x 1/2 in. Black Oxide Socket Head Cap Screw

The Midwest Fastener #4-40 x 1/2 in. Black Oxide Socket Head Cap Screw is engineered for precise fastening in mechanical and general assembly applications. Featuring a durable steel construction with a black oxide finish, it provides reliable holding power and mild corrosion resistance. Designed with a hex socket drive and coarse threading, this socket head cap screw allows for secure tightening in compact spaces where standard wrenches cannot reach. It is ideal for machinery maintenance, equipment assembly, and general hardware repairs.