APPLY TO - Square U-Bolt is good for fixing the locked object to pipe or wood, etc. Fits for trailers, plumbing, and other home and industrial applications, etc.SPECIFICATION -Material: Carbon SteelFit Square Object Size: 40mm /1.57-inThread Size: M8(D)Bolt Rod Size: 7mm(D) /0.28-inTotal Length: 120mm(H)/ 4.72-inHex Nut Size: 14mm(W) x 6mm(H) /0.55-in x 0.24-inFrame Plate Size: 70mm(L) x 20mm(W) x 2mm(H) /2.76-in x 0.79-in x 0.08-inWasher Size: 18mm(OD) x 8mm(ID) x 1mm(T) / 0.71-in x 0.31-in x 0.04-inQUANTITY INCLUDED - 2 x U-Bolts, 4 x Nuts, 4 x Washers, 2 x PlatesADVANTAGE - U bolt made of carbon steel, constructed with high hardness, good performance in anti-rust and corrosion resistance, which have a stable connection.EXPLAIN - First fix the locked object with U-shaped bolts, install the plate and washer, and then lock it with nuts.