I've been looking through the the parts catalogs I downloaded from Classic British Spares and I see hardware listed as "Bolt (1/2 in U.H.)" or "Bolt (9/16 in. U.H.)" and I'm not familiar with sizes listed this way. I also noticed nuts are listed with no size information. Does looking up each part number give more information? Disregard. I found the answer on another forum.
