Expansive Bolt,fastener Size:M6,L41xDIA.10mm M8,L49xDIA.14mm M10,L68xDIA.16mm M12,L79xDIA.20mm Expansive Bolt ,fastenerGDH Code:SC004 Size:M6,L41xDIA.10mmM8,L49xDIA.14mmM10,L68xDIA.16mmM12,L79xDIA.20mmFinish:Yollow zinc Material:A3 steel Packing:800,400,320,200pcs/ctn Expansive Bolt,fastener,M6,M8,M10,M12