... 2, Grade 5, grade 8UNC and UNF5. Standard hex nut, hex jam nut, 6. heavy hex nut, heavy hex jam nut7. ASTM A194 2H, 4, 8, 8HM ... bolts, masonry bolts, roofing bolts.Nuts: spring nuts, T nuts, K nuts, rivet nuts, cage nuts, lock nuts, hex nuts, hex flange nuts, wing nuts, weld nuts, square nuts, cap nuts.Washers: flat washers, spring ...