Pro-Bolt Dome Head Alloy Bolts - M4 x 0.50mm x 8mm x 12mm Silver
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Product Information
Full details
The Pro-Bolt Dome Head Alloy Bolts are designed for motorcycle enthusiasts and mechanics seeking lightweight, corrosion-resistant fasteners for non-safety critical applications like bodywork and plastics. Their key benefit is a significant weight reduction compared to traditional steel or even titanium bolts, enhancing overall performance and aesthetics. A key consideration is their lower strength, meaning they are unsuitable for stress-bearing components and require careful torque application to prevent damage.
All features
| Colour | Silver |
|---|---|
| Model Part Number | AWFFB412-5S |
| Brand | Pro-Bolt |
Extended Product Information
FAQs
What material are these bolts made from?
These bolts are made from 7075T73 aluminium, which is known for its high strength-to-weight ratio.
Are these bolts suitable for engine components?
No, these bolts are not suitable for safety-critical applications or areas subject to significant stress or heat, such as critical engine components. They are intended for bodywork and plastics.
How much lighter are these bolts compared to stainless steel?
They are approximately 60% lighter than stainless steel bolts.
What is the maximum torque for an M6 Pro-Bolt Alloy Bolt?
The maximum recommended torque for an M6 Pro-Bolt Alloy Bolt is 5.00 Nm (3.69 ft/lbs).
Can I use these bolts on my motorcycle's exhaust?
They can be used on non-structural parts of the exhaust system, such as exhaust cans, but not on exhaust manifold connections or any part subject to high heat or significant vibration.
How should I clean the bolts to maintain their finish?
Clean with a soft cloth and mild soapy water. Avoid abrasive materials or strong solvents to protect the anodised coating.
What does 'non-safety critical' mean in relation to these bolts?
It means the bolt is not used in any component whose failure could directly lead to injury or loss of control of the vehicle. Examples include fairings, screens, and trim pieces.
Troubleshooting
Bolt head strips during tightening.
You have likely over-tightened the bolt. Ensure you are using the correct torque setting for aluminium fasteners and a suitable tool. If the thread is damaged, the bolt and potentially the mating component may need replacement.
Bolt does not thread smoothly.
Check that you have the correct thread size and pitch for the application. Ensure the mating threads are clean and free of debris. Do not force the bolt; if it resists, stop and re-align.
Anodised finish appears dull or discoloured.
Avoid using harsh chemicals or abrasive cleaners. Clean gently with mild soap and water. Discoloration can sometimes occur in extreme environmental conditions, but the underlying aluminium offers corrosion resistance.
Pros and Cons
Pros
- Significantly lighter than stainless steel or titanium alternatives.
- Good resistance to corrosion from common environmental factors.
- Offers a visually appealing, anodised finish in various colours.
- Ideal for reducing weight in non-critical areas of motorcycles and vehicles.
- Supplied in practical pack sizes for common repairs and customisation.
Cons
- Not suitable for safety-critical or stress-bearing applications.
- Aluminium is a softer material and can be damaged if over-torqued.
- Requires careful consideration of torque settings to prevent stripping or thread damage.
- May not be suitable for high-temperature areas where original steel bolts were used.
Setup, Compatibility & Care
Compatibility:
Pro-Bolt Dome Head Alloy Bolts are designed for use in non-safety critical areas. They are suitable for applications where original bolts are used on bodywork, plastics, and trim. Always verify the thread size and pitch (e.g., M4 x 0.50mm, M6 x 1.00mm) to ensure they match the original fasteners or the intended mounting points.
Installation:
- Identify Application: Confirm the bolt is being used in a non-stress bearing area.
- Select Correct Size: Ensure the bolt's thread diameter and length are appropriate for the application.
- Apply Recommended Torque: Use a torque wrench set to the manufacturer's recommended settings for aluminium fasteners. Refer to the torque guide provided:
- M4: 1.20 Nm (0.88 ft/lbs)
- M5: 2.50 Nm (1.84 ft/lbs)
- M6: 5.00 Nm (3.69 ft/lbs)
- M8: 10.00 Nm (7.38 ft/lbs)
- Avoid Over-tightening: Overtightening can strip threads or damage the bolt head.
Care:
To maintain the appearance and integrity of your Pro-Bolt fasteners:
- Cleaning: Clean with a soft cloth and mild soapy water. Avoid abrasive cleaners or solvents that could damage the anodised finish.
- Inspection: Periodically inspect bolts for any signs of damage or wear, especially if used in areas exposed to vibration or road debris.