Fast-n-rs Clevis Pin 1/2 x 5 offered in bags with 50 pcs Zinc Plated, Detail Specs: Diameter 0.500" Max 0.496" / Min 0.491" , Head Diameter 0.620" Max 0.630"/ Min 0.615" Hole Diameter 0.156" Max 0.166"/ Min 0.151" , Shank Length Tolerance + 0.020" / - 0.000"