|
ACME
& STUB ACME THREAD SERIES
|
| APPLICATION |
|
Similar
to Trapezoidal threads. Trapezoidal threads follow Metric
system while ACME threads are based on Inch / Imperial
system.
|
| GENERAL |
| Thread
/ Flank Angle 29º. |
| SPECIFICATION |
|
American
specification ANSI/ASME B1.5 – 1988 (revision of ANSI
B1.5-1977 and HAND BOOK Part III – 1957).
|
| British
Specification : B.S. 1104 – 1957. |
| DIAMETER
– TPI COMBINATION |
|
DIA
INCHES
|
TPI
|
PITCH
IN mm
|
|
¼"
|
16
|
1.587
|
|
5/16"
|
14
|
1.817
|
|
3/8"
& 7/16"
|
12
|
2.117
|
|
½"
|
10
|
2.54
|
|
5/8"
|
8
|
3.175
|
|
¾"
& 7/8"
|
6
|
4.233
|
|
1"
& 1.1/8"
|
5
|
5.08
|
|
1.1/4"
|
5
|
5.08
|
|
1.3/8"
& 1.1/2"
|
4
|
6.35
|
|
1.34/"
& 2"
|
4
|
6.35
|
|
2.1/4"
& 2.1/2"
|
3
|
8.467
|
|
2.3/4"
|
3
|
8.467
|
|
3"
& ABOVE
|
2
|
12.7
|
|
