M4 x 18W9 JIS B1188 Phil Pan Split Washer Flat Washer Sems M/S Zinc BSWB These notches allow a cotter

These notches allow a cotter pin to be inserted through the nut and the bolt or screw

The 2-56 x 3/8 Slotted Pan Machine Screw Fully Threaded 18-8 Stainless Steel is a small

The 6-lobe drive requires a specialized driver for installation

This 7/16-14 x 1 1/2 inch Grade 8 fully threaded carriage bolt is made of steel and has a yellow zinc finish

while the slotted hex washer head allows for easy installation with a hex key or screwdriver

M4 x 18W9 JIS B1188 Phil Pan Split Washer Flat Washer Sems M/S Zinc BSWB These notches allow a cotterThe M4 x 18W9 JIS B1188 Phil Pan Split Washer Flat Washer Sems M S Zinc is a type of washer that is used to distribute the load of a screw or bolt. It is made of zinc plated steel and has a split washer design that helps to prevent the screw or bolt from loosening. The washer has a diameter of 4mm and a thickness of 1. 8mm. It is designed to be used with screws or bolts that have a diameter of 4mm.