... ,auto nutCertification:ISO9001:2000Quality:20ppmStandard:DIN6923/JIS B 1190/IFI D-21 1) Material: steel and stainless steel (SUS304, SUS316)2) Surface ... treatment: ZP, BZP, HDG3) Size: M6-M60, UNC 1/4"-3/4", BSW 1/4"-3/4"4) According to customers' drawings ... /TS16949. Wish you a great time! Jenson Shanghai Qiangyi Fastener Co.,LtdTel:8621-57277528 Fax:8621-57277526Mob:86-13916221578