... :DIN,BS, ANSI, ISO, GB3)size:m6-m30,1/4''-1''4)length:10mm-250mm,1/2''--10''Detailed size descriptionA M6 ... -250 M27*90-270 M30*90-3005)grade:4.6,4.8 ,5.6,5.8,6.8,8.8,10.96)finish:zinc, black, plain,H ... .D.G7) material :Carbon Steel,swrch35k,45#8)thread;BSW ...