Hindley 41258 Extra Long Zinc U-Bolts (10 pack)Hindley 41258 Extra Long Zinc U-Bolts (10 pack) Features: With plate and nuts Extra long Zinc 41254: 1-1/8" width, 3-1/2" inside length, 1/4-20 thread size 41255: 1-3/8" width, 3-11/16" inside length, 5/16-18 thread size 41256: 1-3/4" width, 4-3/16" inside length, 5/16-18 thread size 41257: 2" width, 4-11/16" inside length, 5/16-18 thread size 41258: 2-1/2" width, 5-3/16" inside length, 5/16-18 thread size