Overview Reviews Product Description 1/2" x 20 TPI Lock Nut UNF PLTD Product Videos Custom Field UOM EA Product Reviews Write a Review Write a Review × 1/2-20 LOCK NUT UNF PLTD Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *