Product Details
The 5/16-18 x 4 slotted indented hex washer head machine screw is fully threaded and made of zinc. Machine screws are engineered to be inserted through a hole or nut that has been pre-tapped to create a mating thread. The indented hex washer head design provides the advantages of a hex head while offering increased protection to the mating surface. This screw is ideal for applications where a durable and strong fastening solution is required.
