12 Pcs Hotop 304 Stainless Steel Square U-Bolt Boat Trailer U-Bolts with Washers and Nuts l Heavy Duty U Bolt for Sailboat Trailer Automobiles Industrial Part (1/2 D x 3 1/16 W x 5 5/16 Inch)

Package includes: stainless steel u-bolt set include 12 pieces u-bolts, 24 pieces stainless steel flat washers, 24 pieces stainless steel nylon lock nuts, 24 pieces lock washers, all accessories are made of 304 stainless steel | U-bolt size: 1/2 x 3-1/16 x 5-5/16 inch (D x W x L), thread length: 2-1/2 inches, suitable for 3 x 3 inch square beams and shafts | Stainless steel material: u bolts for boat trailer are made of 304 stainless steel, strong and long-lasting; Each bolt can withstand 100 LBS; These 304 stainless bolts prevent rust corrosion, acid corrosion and wear; It's still perform well in rainy and humid seaside environment | How to use: firstly choose the corresponding square U shaped bolt according to the size of the tube, then drill holes in the connection, and finally lock nut and flat washer; Use a hand wrench or socket ratchet when installing nuts; Do not use an impact or a high speed socket driver | Wide application: square u-bolt is applied to fix or connect the locked parts to rectangular wood and metal objects, such as cars, sailboat trailers, tube, plumbing and other industrial applications