Technical Reference – Thread Specifications
■ R and PT Series
(External and Internal Taper) h
2
P =
H = P
H r
h = P 2 h
° °
r = P H r
55°
H
2
h
2
P
Axis of Thread 90°
l
All dimensions in mm.
16
# Threads
Thread Per Inch Pitch Tolerance
± ± 1
Size n P h r d or D d2 or D2 d1 or D1 a b c D, D2, D1 lll t
R1/16 28
R 1/8 28
R 1/4 19
R 3/8 19
R 1/2 14
R 3/4 14
R1 11
R1-1/4 11
R1-1/2 11
R2 11
R2-1/4 11
R3 11
Pipe Thread 来自淘豆网www.taodocs.com转载请标明出处.