what size rivnuts for downtube battery mounting ali or steel

[footpump]

hello all need to add some rivnuts to cycle front downtube for battery mounting, I believe m5 are the ones do I go for ali or ss steel but have no idea on length of rivnut, do I need to buy the rivnut tool.

link if possible where to purchase said rivnuts.

thanks again

 

[trex]

I bought those:
http://www.ebay.co.uk/itm/KNURLED-STEEL-THREADED-STEEL-RIVNUTS-NUTSERTS-BLINDNUT-RIVET-NUTS-INSERT-/191625310115

and this tool:

http://www.ebay.co.uk/itm/4mm-8mm-THREADED-RIVET-NUT-INSERT-SETTING-TOOL-RIVNUT-PROFESSIONAL-/391342478289

They work well.

 

[Cyclezee]

I second Trex on that one and use exactly the same, I would also go for steel rather than aluminium as the threads are stronger.

 

[baldylox]

As trex says above, all worked well for my additional battery mounts.
Also make sure the rivnut has a good wide collar for stability.

 

[footpump]

thanks all rivnuts and tool ordered I assume 5mm was the correct size for mounts, can see me finding lots of other uses and applications for rivnuts in the near future

 

[cwah]

Are u going to drill your frame?

 

[trex]

I use a 2.5mm drill bit to start the hole then 6.5mm drill bit (for M5 rivnuts) and clean by hand with a small round file.

 

[footpump]

the front downtube already has 2 water bottle mount inserts but they are low down and although I have not offered up the battery yet I might just utalise the top one and fit 2 more so I will be drilling the frame.

thanks all

 

[Tubamanandy]

M5 steel rivnut worked for me

 

[footpump]

rivnuts and tool arrived yesterday tool is nice and robust, its about 30 years since I used a rivnut tool and I would think stainless rivnuts would be near nigh impossible.

rivnut now fitted to downtube.

thanks again