NYLON INSERTS LOCK NUTS Stainless steel 316 100,000 pcs: 1/4-20 25,000 pcs: 5/16-18 100,000 pcs: 3/8-16 35,000 pcs: 1/2-13 25,000 pcs: 5/8-11 10,000 pcs: 3/4-10 2,000 pcs: 7/8-9 2000 pcs: 1-8 500 pcs: 1-1/8-7