ASTM A194 Heavy hex nuts for use with structural bolts Steel grade 7, black finish, certificate 3.1 and PED H=D M16 - 10000 pcs; M20 - 10000 pcs, M24 - 8000 pcs, M27 - 4000 pcs; M30 - 3000 pcs; M33 - 3000 pcs; M36 - 1000 pcs; M39 - 2000 pcs; M42 - 500 pcs. A193 Wire and rods for oil and gas fasteners Grade B7 M20 x 2m, 200 pcs M24 x 2m, 200 pcs M12 x 2m, 100 pcs M27 x 2m, 50 pcs.