I have a good supply of the 70s bolts and deep cylindrical nuts used to attach TA and Stronglight 49d cranks with 5-pin system (50.5 mm bcd) to the outer chainring. These are about 10 mm. threaded shaft length. Happy to trade for a matched set (5 or 5+1 spare) of the shorter (~7 mm) ones used for the older steel cranks and rings (thread into the ring). 7mm square head or 8 mm. hex. To be mounted on English-threaded Stronglight Competition crank.
thanks
harvey sachs
mcLean va