PT1/4 large diameter pipe joint? No figure urgently
The basic size of large diameter pitch thread code P per inch TPI in diameter of external thread tooth type D3 path height H1 bottom hole sizeG, 1/4, 1/4, 13.157, 1.33719, 12.301, 11.445, 0.856, 11.6
The thread has a taper of 1:16, equivalent to 55 degrees taper pipe thread, or ZG
Taper Pipe Thread is an inch taper pipe thread standard with a thread shape of 55 degrees
