8 pack of 8" Swivel Bracket Kit for 3x3 cross member, ready to be installed onto your boat trailer! Brackets made from heavy duty durable galvanized steel, adjustable design allows you to align the angle to contour to your boats hull, angled or flat Zinc coated to prevent rusting and suitable for marine trailers and motor boats in saltwater, fresh water, coastal conditions and utility/land trailers in icy conditions This swivel top style bunk bracket is a standard 8" tall with slotted holes for multiple mounting holes making this kit fully adjustable to meet your trailers needs Kit includes: (8) swivel brackets, (8) bolster brackets, (8) square U-bolts, (16) hex nuts, (32) flat washers, (16) lock washers, (16) flat washers, (16) screws, (8) bolts, (8) hex nuts 8" Galvanized Swivel Top Bunk Bracket Kit with Hardware for Boat Trailer, fits 3x3 Cross Members, Heavy Duty