... steel,aluminium 3)ROHS Compliant; TS-16949(including ISO 9001 round nut stainless steel blind rivet nut :Material: carbon steel( ... 304,316) aluminium(5052,5056)Head type Flat head, small/reduced head, csk headBody type: round, knurled/ribbed, hexagon, blindSize :GB-M3 ... platingQuality Certificate: TS-16949 Blind rivet nut :1) Round body, plaing, with flat head 2) High crimping force 3) Screw length can ...