Dropped into coventry fasteners this week to check what new replacement nuts and bolts are suitable for the FC.

I took a dozen or so zip bags full of different types of nuts and bolts.  The guy at the counter almost had a heart attack and couldn't process them straight away.  I left the bags with them and they did a pretty good job at matching quiet a lot of them. 

The main threads used are UNF and UNC (fine and coarse).  Including some high tensile black bolts, the grand total was a small $27.  One of the few times in the project where I was expecting the cost to be a fair bit higher than it actually was. 

Other bolts that can't be replaced will either be cleaned or zinc plated.