Hex Nut 304 Stainless Steel Expansion Bolt Sleeve Anchors 3/8" x 3 1/2" Product Name : Expansion Bolt;Material : 304 Stainless Steel Thread Diameter : 9.5mm/ 3/8";Total Length : 80mm / 3.1" Color : Silver Tone Weight : 66g Package Content : 1 x Expansion Bolt