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1. Introduction
Titanium bolt is by the head and the screw (with external thread of the cylinder) of two parts of fasteners. It needs to cooperate with nut, used for fastening the two parts with hole. Titanium bolt connection is a detachable connection. Titanium washer usually mats between fittings and nut parts.
2. Materials & standards
Material Gr1, Gr2, Gr3, Gr4, Gr5, Gr7, Gr9, Gr12
Standard DIN 933, DIN912, DIN931, DIN913, DIN916, DIN7984, DIN6921, DIN7985, DIN963, DIN84, DIN7981
Size M1.6~ M64
Technique CNC   Machining
States (M) Annealed
Surface Polishing, Anodizing, Black oxide
3. Classification of Screw
Titanium round head screws
Titanium self-tapping screws
Titanium six screws
Titanium countersunk head screw
Titanium a screw
Titanium lag screw
Titanium double screw
Titanium non-standard screws
Titanium fastening screws
Titanium standard screws
Titanium flat head screws
4. Classification of Nut
Titanium Hexagon Nut with Flange
Titanium wing Nut
Titanium Six angle nut
Titanium self-locking nut
Titanium ring round nut
Titanium knurled nut
Titanium slotted nut
Titanium non-standard nut
5. Chemical Requirements
 Grade N C H Fe O Al V Pa Mo Ni Ti
GR 1 0.03 0.08 0.015 0.20 0.18 / / / / / bal
GR 2 0.03 0.08 0.015 0.30 0.25 / / / / / bal
GR 5 0.05 0.08 0.015 0.40 0.20 5.5~6.75 3.5~4.5 / / / bal
GR 7 0.03 0.08 0.015 0.30 0.25 / / 0.12~0.25 / / bal
GR 9 0.03 0.08 0.015 0.25 0.15 2.5~3.5 2.0~3.0 / / / bal
GR 12 0.03 0.08 0.015 0.30 0.25 / / / 0.2~0.4 0.6~0.9 bal
6. Physical Properties
Grade State Tensile strength(min) Yeild strength (min) Elongation (%)Ksi MPa ksi MPa 
GR 1 （M）Annealed 35 240 20 138 24
GR 2 （M）Annealed 50 345 40 275 20
GR 5 （M）Annealed 130 895 120 828 10
GR 7 （M）Annealed 50 345 40 275 20
GR 9 （M）Annealed 90 620 70 438 15
GR 12 （M）Annealed 70 438 50 345 18