PART NO: B1190. Hitch pin. 7/16" pin dia., 3-1/2" useable length, 5-11/32" overall length, wire handle. SI Number: 923877 Standard Pack: 1 Weight: 0.4 Properties Pin Dia.: 7/16 " Useable Length: 3-1/2 ". Weight (lb) - 0.4