Comparison : Item # A325-050-13-0125-P, 1/2-13 x 1-1/4 A325 Structural Bolt Plain
Item # A325-050-13-0125-G, 1/2-13 x 1-1/4 A325 Structural Bolt Hot Dipped Galvanized
Item # A325-050-13-0150-P, 1/2-13 x 1-1/2 A325 Structural Bolt Plain
Item # A325-050-13-0150-G, 1/2-13 x 1-1/2 A325 Structural Bolt Hot Dipped Galvanized
Item # A325-050-13-0175-P, 1/2-13 x 1-3/4 A325 Structural Bolt Plain