HEX bolts ASTM A193 Grade B7 and HEX nuts A194 Grade 2H HDG coated acc. to ASTM A153/A153M Bolt head and nut to be stamped with grade and producer Certificate 3.1. is requested As per the list. HEX BOLT M12*50 + 2 Nut - 7280 sets HEX BOLT M16*70 + 2 Nut - 1636 sets HEX BOLT M20*80 + 2 Nut - 86 sets HEX BOLT M30*170 + 2 Nut - 2 sets HEX BOLT M36*170 + 1 Nut - 16 sets HEX BOLT M48*170 + 1 Nut - 5 sets HEX BOLT M8X40 + 2 Low Nut - 3556 sets