1. Titanium Drilled Flange Hex Head Bolt, also called Titanium Race Spec bolt, Titanium hex flange bolts etc., are machined with 6 drilled holes on all flats for safety lock wiring, used in a wide range of racing applications due to benefits below. We always have M5 to M10 race spec bolts on our shelves ready to ship once the order confirmed:
● Manufactured from ASTM B348 Grade 5 Titanium alloy bars ( 6AL-4V Titanium )
● 45% lighter than steel equivalents, strength and corrosion resistance
● Rolled thread for better fatigue resistance and avoid galling, NOT like cutting thread
● Hot forged heads for higher strength between head and shank
● Shiny polished finish that look better than original
● Drilled holes on flats for safety locking wire to avoid bolts loosening
● More colours finish available, contact us
2. Head dimensions of our Titanium Drilled Flange Head Bolts are optimized on weight saving based on DIN 6923, see table below:
Size |
Flange OD |
Head height |
Wrench size |
Max. length |
M5x0.8 |
10.5 |
5 |
7 |
50 |
M6x1.0 |
11.5 |
5.5 |
8 |
120 |
M7x1.0 |
12 |
6 |
9 |
120 |
M8x1.25 |
14 |
6.5 |
10 |
140 |
M10x1.25/1.5 |
17 |
8 |
12 |
250 |
M12x1.25/1.5 |
20 |
10 |
14 |
250 |
Customized head sizes and shank length, please send us an inquiry
3. Our Grade 5 Titanium alloy Specification
Tensile strength: Heat treated to 950Mpa~1050Mpa
Yield strength: 870Mpa~925Mpa ( 126,000psi~134,000psi)
Hardness: 30HRC~40HRC
Shear strength: 500Mpa~550Mpa
Elongation: 14%~18%
Working temp.: Up to 500°
Click here to know more about Grade 5 Titanium alloy we are using to make bolts:
http://www.ti-fasteners.com/