The Huck BobTail® represents the most advanced fastening technology to date. Engineered to meet the challenges of a wide range of assembly applications. BobTail offers high performance and reliability in a unique, pintail-less design. It offers up to 5 times the fatigue strength of conventional nuts and bolts, unmatched installation speed and vibration resistance. Ideal for truck and trailer assembly and railcar applications, BobTail is the industry's next-generation lockbolt.