NutChina Expansion Hex Bolt with Spring Washer and Nut Stainless Steel Screw Torx Hex Socket Bolt Galvanized 4.8 6.8 8.8 U Bolt/Flange Bolt/Carriage Bolt/Anchor Bolt, Find details about China Nail, Screw from Expansion Hex Bolt with Spring Washer and Nut Stainless Steel Screw Torx Hex Socket Bolt Galvanized 4.8 6.8 8.8 U Bolt/Flange Bolt/Carriage Bolt/Anchor Bolt