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:

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/