Pro-Bolts’ Race Spec Bolts are designed for enthusiasts who truly value attention to detail and are widely used by teams at all levels.
The key features are in the flanged hex head design which benefit from a reduced socket size that has been drilled to 1.6mm on each flat for ease of lock wiring and the inside of the hex is dished for additional weight saving with no compromise in strength.
In addition to these neat features, our bolts are manufactured from grade 316 Stainless Steel. This material offers superb corrosion resistance and durability. They are machined with rolled threads to give extra strength and polished to a mirror finish. Ideal when quality, strength and corrosion resistance is required but Titanium isn’t an option.
Prefer something a little more subtle? Stainless Steel is also available in black, which not only looks great but has other benefits too..
This beautiful long lasting black finish results from an application of Diamond Like Carbon Coating (DLC) This gives supreme hardness and corrosion resistance provided by a nano composite coating, which increases the fastener lifetime dramatically and helps to prevent galling. By incorporating them right from the beginning, the overall system cost can be held level or may even be reduced.
Please note that due to this special coating Black Stainless Steel is not identical to our Black Aluminium.
Unsure what size you need? Why not order one of our progauges and double-check? Take a look here
|Weight in Gms||39.7100|
|Country of Manufacture||United Kingdom|
|Head Style||Flanged Hex Head|
Manufactured from A316 stainless steel. A316 stainless steel has a minimum chromium content of 16.5% and contains elements of carbon, molybdenum, silicon, phosphorus, sulphur, nickel, manganese and iron, all of which add properties of formability, strength, weldability and enhanced corrosion resistance. All of the fasteners are highly polished to a mirror-like finish.
- Density 8030kg/m3 (501lb/ft3)
- Young's Modulus 193GPa (28 x 106psi)
- Yield Strength 260MPa (37.7 x 103)
- Ultimate Tensile Strength 570MPa (82.7 x 103 psi)
- Compressive Strength 260MPa (37.7 x 103 psi)
- Shear Modulus78GPa (11.3 x 106 psi)
- Ductility 40% elongation at break +
- Minimum value allowed by ASTMA240
- Poisson's Ratio0.27
- Hardness 95 Rockwell B+
- Maximum value allowed by ASTMA240
- Strength-to-Weight Ratio 32.4 kNm/kg
- Stiffness-to-Weight Ratio 24.0 Mnm/kg
Black & Gold Stainless Steel: Long lasting finish resulting from an application of Diamond Like Coating (DLC). This unique finish increases the fastener lifetime and helps to prevent galling whilst providing a supreme hardness and offering the optimum in corrosion resistance thanks to a nanocomposite coating.