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I have some nutserts but in Walton on Thames, probably easier just to get these from ebay for less than £2
You want the aluminium ones, less pull up force required and a little more margin for error. The usual drilling size is 7.1mm
http://www.ebay.co.uk/itm/STEEL-ALUMINIUM-STAINLESS-RIVNUTS-NUTSERTS-RIVET-NUTS-M3-M4-M5-M6-M8-M10-M12-/361388153801?var=&hash=item5424699bc9:m:mmbqNhMqoBEOifh0cxwNRCg
freezing77
PhilDAS
Thinking of adding bottle cage mounts to my frame. It doesn't have any since it was some sort of prototype for testing.
It's a steel genesis so probably 725 tubing or similar. I'm just going to do it myself for now.
Is it safe to drill holes in the down and seat tubes? I'd be using rivnuts
Also anybody have any spare m5 rivnuts?