... Packaging detailExport Quality PackingDelivery Detail FOB NINGBOSpecifications(1). Product: Hex bolt and nut(2). Standard: DIN6914(3). Grade:8.8(4). Size: ... M42 LengthM16-300Type of headSquare,Hex,Flange,Hex socket,T-Head and other you can chooseSurface treatmentBlack Oxide,Zinc plated, ... Type of NutSquare,Hex,Flange,Hex socket,T-type,Coupling,wheel ,acorn,tapper,and so onRegarding to Washers Type of ...