I am needing some help. The front brake on my 1983 Miyata Two Ten is a Dia Compe centerpull. I need to loosen the fixing bolt which passes through the fork, but the allen threads are all hootered up evidently by some past jamoke trying to loosen a metric allen nut with the wrong size allen, or some such antics. I have entertained pounding a slotted screwdriver into the nut and backing it out that way, in which case I'd need to procure a replacement. Anybody know if this will work, and if so what is the size of this allen nut? Seems a M4 but I don't want to make any assumptions. Could be something else.
Also - I'm just trying to mount a front fender. I made a ghetto-bracket that inserted up into the head tube from underneath with just enough friction to hold it, but long term I want to be mounted properly. Any other ideas on mounting a wood fender?