Fasten metal to metal, metal to wood or metal to other types of materials with these Precision machine screws. The durable steel screws have a zinc coating for smooth performance and rust resistance. The screws feature a slotted pan head that delivers great torque, hold and easy installation. They have a metric machine thread and are designed to be used in a pre-tapped hole and in projects where secure clamping or disassembly may be required. They are similar in strength to SAE grade 5 screws. Machine nut not included.