Drop in Anchor, DIN912 Hex Socket Head Cap Screw, Sleeve Anchor manufacturer / supplier in China, offering Factory Supply High Strength Grade 12.9 Alloy Steel Hex Socket Head Cap Screw DIN912 for Machinery Allen Screw Bolt, Grade 10.9 12.9 Heavy Truck Wheel Stud Wheel Hub Bolt Trailer Bolt Truck Bolt Automotive Wheel Bolt, Concrete Fastening Ceiling Nail Gun Fasten Tools Shooting Tool for Construction and so on.