Thats what I was hoping for

. I'm just a lowly mechy fitter, and you have been refering to said bolts as 8/32 and not 8-32. I knew there must be somthing in it as a 10/23 (UNC or UNF) bolt does not exist or at least it's not a nominal size. In addition to another reply I believe the UNF thread was introduced to hold 'important bits together' where an appropriate thread length isn't practical.