Thread: 1929 Sport Coupe Rear Window Trim Screws
View Single Post
Old 01-05-2023, 05:16 AM   #10
Synchro909
Senior Member
 
Synchro909's Avatar
 
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,511
Talking Re: 1929 Sport Coupe Rear Window Trim Screws
Quote:
Originally Posted by dave in australia View Post
They are gauge size screws. The first number is the diameter in gauge, and the second is the TPI. So, a 5-40 would be 5 gauge 40TPI. As with wire gauge, the bigger the number, the smaller the diameter.
Thanks, Dave. That sounds a bit "screwy" to me.
__________________
I'm part of the only ever generation with an analogue childhood and a digital adulthood.
Synchro909 is offline   Reply With Quote