If it all goes wrong here is a usefull site:

http://www.engineering-supplies.com/cat ... ps-gauges/

why not strip your old ones and passivate or zinc them?


Stainless and Aluminium don't mix to well but also stainless isn't anywhere near as strong as everyone seems to think

i went to the main fastener supplier and asked for some big s/s bolts for my landy tow hitch and the fella behind the counter went mad , he said they work harden and then fail,