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Pro-Bolt M5 x 16 Alloy (1)

Product code: 11603

From £1.24 to £1.50RRP: £1.50(Save up to 17%)

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Pro-Bolt M5 x 16 Alloy (1)


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- Super light replacement aluminium alloy bolts by Pro-Bolt.
- Made in the UK from 7075-T73 aluminium, these bolts are perfect for pimping your bike in low-stress areas. Please see the Additional Information tab for more details.
- 4mm allen key head.
- Available in a wide range of anodised colours.
- Please note that the anodising colours vary on this item. If you order more than one of the same product we will always match them as closely as we can, but it's not always possible to get a perfect match. If the colours we have in stock are 'too far' from each other, we will contact you before dispatch to discuss the options.
- 65% lighter than standard steel bolts!
- Sold singly.

Additional Information

Always use a good quality allen key when fitting this item and apply copper grease to the threads before installation. Do not overtighten.

Potential Application

Lever clamp bolt for 2005 Magura HS33 brake levers
Lever clamp bolts for Hope Tech levers
Lightweight upgrade bolts such as these should always be used with care, we cannot accept responsibility for any damage caused by incorrect installation or misuse.



Hello, I was wondering do these bolts come with washers and can they be safely run at 5NM torque as that is the spec for my stem? Advice would be much appreciated. Kind Regards Dan

Posted by Dan

Reply from TartyBikes

Hi Dan - We typically wouldn't recommend using these for a stem as there's a lot of force going through your stem, so it's a little risky using alloy bolts like this. For low stress areas like bar clamps and so on they're more than up to the job, but in terms of high load areas like your stem we'd suggest going with Ti bolts if you wanted to try and save weight. Thanks, Mark

Nick Thornton

hi you mentioned the Tech trial brake - how about the Tech x2? thanks

Posted by Nick Thornton

Reply from TartyBikes

Hi Nick - thanks for your question. Yes - these will fit your brake perfectly. Thanks, Flipp.


Hi guys, do these bolt fit hope pro 2 hubs? And asking a question for another product what bolt would I need to fit my bbb stem? The four for the faceplate and two for the steerer tube part? Thanks James

Posted by James

Reply from TartyBikes

Hi James - thanks for your question. By that, I'm assuming you mean for use with rotor bolts. If that is correct, then no - these would be too long to use as rotor bolts, which are M5 x 10mm. We also strongly advise against using aluminium bolts for rotor bolts as they are not as strong as steel or titanium alternatives, so could easily shear off under the very high sideways-loads that rotors place on their bolts. As for the stem - for the steerer clamp you would need M5 x 18mm and M5 x 16mm for the handlebar clamp, though we advise not using alloy bolts in the handlebar clamp for the same reasons as rotor bolts. Hope that helps. Thanks, Flipp.


Can these be used on my stem? Or would I need longer ones? Thanks!

Posted by Scott

Reply from TartyBikes

Hi Scott - most stems with an M5 thread would require an 18mm bolt, though we advise not using these bolts in a stem. Both the steerer and handlebar clamp require being tighter than these bolts can comfortably offer, and so often end up not clamping tight enough or snapping. Thanks, Flipp.

justin gee

can i use these bolts for a bottle holder,i.e frame bolt?????

Posted by justin gee

Reply from TartyBikes

Hi Justin - These bolts should work fine for bottle holders. Thanks, Mark

James Wright

Hi Is the price to buy for 16 bolts many thanks, james

Posted by James Wright

Reply from TartyBikes

Hi James - This is the price for an individual bolt in M5 x 16mm size. Thanks, Mark

Mitch Ho

Hey guys, is this bolt for the HS33 handlebar clamp, or the actual lever blade? Thanks

Posted by Mitch Ho

Reply from TartyBikes

Hi Mitch - This is for the bar clamp, not the pivot bolt. Thanks, Mark


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Posted by Nicolas

Not sure what to say... I bought some and when it came to install them one just broke! Poor quality but good looking.

Reply from TartyBikes

Hi Nicolas - The Pro-Bolt bolts are some of the highest quality alloy bolts available. However, as with any alloy bolt, we recommend using a torque wrench when installing them so as to avoid over-tightening them. They're not as strong as a steel or titanium bolt, so you need to be more careful when installing them as well as use plenty of grease.

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  • Tel. (UK). 01772 32 33 33
  • Tel. (Intl). 0044 1772 32 33 33

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