Square taper BB spindle Female threads
I have a wrecked Specialized aluminum frame. I'm trying to extract the Shimano square tapered BB cartridge. The lock rings are chewed up so I'm not confident I can get a secure bite with the lock ring tool. My tool is the Park BBT-2. I'm thinking if I could get a 2-3" long bolt I could could bolt thru the tool and pull the tool tight on the ring. Then use a BFW on the tool to extract the ring. I've looked the crank bolt and I'm not sure what the thread and diameter are. Is it a standard size bolt I could get at the hardware or NAPA store to bolt into the end of the spindle?
Thx