Flat pad is mainly to use iron plate stamping, shape is generally a flat washer, there is a hole in the middle. The hole size specifications are generally according to customer requirement to decide.

The function of flat pad is to increase the contact area of screw and machine, the elimination of trampoline at the time of discharge screw damage on the surface of the machine. When using must be a spring cushion flat mat, flat surface of the pad is attached to the machine, spring cushion between the plain washers and nuts.