The GTD 0.5 in diameter x 1.402 in lead threaded torsional anti-backlash nut is a precision inch lead screw nut designed to eliminate backlash through torsional preload. The threaded body allows direct installation into a tapped hole, simplifying assembly in space-constrained applications with 7 starts. Compatible with Helix 0.5 in diameter lead screws. Available in right-hand and left-hand thread directions.