Item has retainer head on 1 end 0.180 diam, 0.013 to 0.018 in. Thick, length is 0.859 in. Lg, o.1248in. Diam; end opposite head is threaded and chamferred at a 45 degrees angle, 0.031 in. Deep; matl corrosion resistant steel type 303 per qq-s-763, class 7, type a, passivated per collins specification 580002500