Overview Reviews Product Description 1/2 inch x 13TPI Lock Nut, Zinc Plated, Grade 8-UNC Product Videos Custom Field UOM EA Product Reviews Write a Review Write a Review × 1/2-13 Lock Nut 8 UNC PLTD Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *