Tmoose
Mechanical
- Apr 12, 2003
- 5,628
On another thread it was proposed that threaded holes with long engagement lengths are often thread milled with a progressive pitch. When a bolt with a constant thread pitch is installed it creates a more even stress distribution among the engaged threads.
I was thinking the variation in pitch on a 3/8"-24 bolt could only be on the order a thousandth of an inch ( 0.001" ) over 3/4 inch engagement lest the threads that touch first be severely strained by the time the first threads take up load.
Is anyone familiar with that technique.
I was thinking the variation in pitch on a 3/8"-24 bolt could only be on the order a thousandth of an inch ( 0.001" ) over 3/4 inch engagement lest the threads that touch first be severely strained by the time the first threads take up load.
Is anyone familiar with that technique.