Hupp 20 U Bolts

[1937hd45]

When you find time, look at your spring U Bolts. Guess all of mine were a bit longer than needed and they were trimmed with a bolt cutter once the nuts were tightened. This buggered the nuts when they were removed. Odd 3/8 x 14 on the back ones, have to order the tap and die to chase the threads. Bob 

Edited July 28, 2020 by 1937hd45 (see edit history)

[KenHupp20]

Thread files are darn handy too.

[1937hd45]

1 hour ago, KenHupp20 said:

Thread files are darn handy too.

 

 If they made a 3/8 - 14 I'd agree. Bob 

[KenHupp20]

Thread repair file has 11,12,13,14,16,20,24 tpi,it’s a flat file to use on the male threads.Try google or YouTube,very handy tool.

[1937hd45]

As luck would have it mine doesn't have 14. Bob 

[29hupp]

McMaster has them.

https://www.mcmaster.com/dies/external-thread-repairing-files/for-threads-per-inch~14/

[1937hd45]

 

Found the odd 7/16 - 14 tap & die on eBay, die was a hex not round worked out fine. Still think is is so crude that they trimmed the U bolts with a pair of bolt cutters. Model T Fords of the same era used fine threads, ends drilled for cotter pins & castle nuts. 1908 - 1948 same design. 

Bob

Edited November 29, 2020 by 1937hd45
correction (see edit history)