Bearing PlateBearing plates give greater bearing surface than standard cut washers and help distribute the load at these critical connections.No. BP1/2: 3/16 IN thick uncoated steel, 2 IN W. x 2 IN L.; install with 1/2 IN diameter boltNo. BP 1/2HDG: 3/16 IN thick hot-dip galvanized steel, 2 IN W. x 2 IN L.; install with 1/2 IN diameter bolt.No. BP1/2-3HDG: 3-gauge hot-dip galvanized coated steel, 3 IN W. x 3 IN L.; install with 1/2 IN diameter boltView Simpson Strong Ties website for details and warranty information on this product.