... ZINC,HDG,PLAIN 3.Certificate:ISO9001 DIN933/DIN931 hex Bolt class 4.8/8.8 We are professional manufacturer of fasteners including ... BS, ANSI, ISO, GB.3)size:m6-m30,1/4''-1''4)length:10mm-250mm,1/2''--10''Detailed size description:A ... *80-250 M27*90-270 M30*90-3005)grade:4.6,4.8 ,5.6,5.8,6.8,8.8 ... M30PackingCarton,Jute Bag,Carton+PalletDelivery5-30daysCertificateISO9001 DIN933/DIN931 hex Bolt class 4.8/8.8