... treatment: HDGPhotos for detailPhotos for PackinghCertificationRegarding to Bolts StandardDIN931,DIN933,DIN6914,ASTM A325M,ASTMA325, ASTM A-10,ASTM490M and other you ... accroding to your drawing or your sampleRegarding to Nuts Type of NutSquare,Hex,Flange,Hex socket,T- ... ,wheel ,acorn,tapper,and so onRegarding to Washers Type of WasherRound ,Square,Plat,Friction,Plate ASTM A325 NUTS AND BOLTS HARDWARE