Item nametitanium nut fasteners MaterialGr1,Gr2,Gr3,Gr5,Gr7,Gr9,Gr12,Gr23. StandardASTM F136/A325, DIN912, DIN933, DIN84, DIN85, DIN963, DIN7991, DIN6912, DIN931, ISO7380,etc CertificateISO9001,SGSHead typeRound,Pan,Hex,Flat,Button,Truss,Oval,Binding,Chese,Fillister,etc. Drive type Slotted,Hexm,Allen,Torx,Spline Drive,etc ..