Roll-Fast is a manufacturer of Stud bolts for Ship Engines & automobiles from M10 to M100 or 1/2” to 4” diameters. The Stud Bolt is the same as a normal bolt but without any head. The stud bolt can be full thread or half / partial thread on both sides. The Stud Bolts provide the ability to obtain much more accurate torque values because the studs don't twist during tightening as do bolts. Because the studs remain stationary during nut tightening, the studs stretch in one axis alone, providing much more even and accurate clamping forces.
