... of silo bolt:Diameter of silo bolt could be 1/2", 3/8", 5/8",1"Length of Silo bolt could ... be 1", 1-1/4", 2", 4",6"2, Grade of silo bolt:This could be 8.8 ... ;5, Delivery time of Silo boltLike the size of 1/2"*1", we could finish 600000pcs per month. Silo bolt