Conquest 1-1/8" x 2-1/2" A325 Type 1 Fully Coarse Threaded Heavy Hex Structural Bolt, Hot Dip Galvanized | Qty. 170 (Carton)When pairing a nut with hex bolt, the material and finish must match. If these do not match, the nut will not fit the bolt. Conquest A325 Type 1 Heavy Hex Structural Bolts adhere to the ASTM F3125 standard, specifically engineered for structural bolting in steel to steel connections. These heavy duty bolts, designed for high strength applications, play a crucial role in highway construction and bridge construction, providing a robust connection for