This flat U-bolt kit fits Mack suspension applications and is sold as a pack of two kits, each measuring 3-1/2in inside width by 10in inside length with a 7/8in-14 thread and 3-1/2in thread length. Each kit includes one flat U-bolt and two nuts for clamping the leaf spring to the axle housing. The flattened bolt ends help reduce stress points at the clamping area.Interchanges:25154203251593277QK3118P507QK3151P37QK3151P4Mack 7QK3118P49This unit is sold in packs of 2.FeaturesPack of 2 flat U-bolt kits3-1/2in inside width x 10in inside length3-1/2in thread length, 7/8in-14 threadEach kit includes 1 flat U-bolt (FUB-5054-001) and 2 nuts (HNU-5836)Suspension applicationTech SpecsInside Width: 3-1/2 inInside Length: 10 inThread Length: 3-1/2 inThread: 7/8in-14Kit Contents: 1 Flat U-Bolt (FUB-5054-001), 2 Nuts (HNU-5836)