Extreme Max 3006.6887 Galvanized I-Beam Clamp Kit for 1.5" Square Trailer Guide-On Poles

Designed for use with 1.5" square trailer guide-on poles Includes four brackets to make two clamps, four M10 washers, two M10 x 1.5 x 40mm hex head bolts, two M10 x 1.5 x 70mm hex head bolts, and two M10 x 1.5 lock nuts Zinc-plated hardware and galvanized brackets Not designed for use in salt or brackish waters