3/8"X3 1/4" Hot Dipped Galvanized Carriage Bolt, Nut & Washer Assembly

3/8 X 3 1/4 inch hot dipped galvanized carriage bolts are commonly used on the 300B or 300C crossarm clamps. 3 1/4 is the longer bolt for these clamps. If you are trying to purchase new bolts for your crossarm clamps you will need to purchase a 2 1/4 inch carriage bolt also. These castings use one each of two different sizes. These are also the bolts used to fasten all special truss castings and the 320 double end clamps.