uxcell M3 x 6mm x 0.5mm Flat Nylon Insulation Spacer Washer Gasket Rings

Normally used to distribute loads of threaded bolts, screws and nuts evenly as the fastener is tightened. Intended for the general use under the head of a bolt or nut in order to provide a smooth-bearing surface. Flat nylon insulation spacer washer gasket ring, it is ideal for mounting between PCB circuit boards and machine boards.