500 PC Grade 8 Coarse & Fine Thread Nylon Lock Nut Assortment Yellow Zinc
Coarse Thread. Fine Thread. We will be happy to customize your order the way you want. 500 pieces total. 50 pieces 1/4-20. 50 pieces 5/16-18. 50 pieces 3/8-16. 50 pieces 7/16-14.