Who had the bright idea to come up with alloy allen bolts with a 3mm socket eh? Bloody stupid fitting on the underside of an MTB downtube, where once they've settled in are only removable by sawing a flat screw slot into them, apparently.. Oh well off to the cycle shop tomorrow for couple of replacemrnts so I can actually fit a mudguard. Anyway, thinking slightly longer term I seem to recall there was a place that knocked out mixed buckets of bolts, but can't seem to find anything that's a mix of M4 M5 and M6 with multiple lengths.. Any ideas folks?