... or sample.Specifications: 1)Bolt sizes:M3-M20*Length 2)Nut sizes:M3-M303)Washer sizes:M4-M164)Standard:DIN,ASTM ... ,DIN913,DIN915,DIN931,DIN933,DIN934,DIN7991,DIN965,DIN966,ISO7380,DIN985,DIN6921,DIN125,DIN7380,DIN7984DIN127,DIN6923 5)Grade:Gr1,Gr2,Gr3,Gr5,Gr7,Gr9,Gr12 ...