1/2" - 10TPI ACME
popularity: very high
ACME General Purpose (ASME/ANSI) (1 start)
Spec Sheet
TAP DRILL SIZE
Nearest Drill
Letter Z drill
Specific Diameter
0
.
4
1
0
0
"
For 90% thread engagement (typical for tapping)
NEAREST EQUIVALENT - METRIC TRAPEZOIDAL
Standard Series
T
r
1
2
x
3
m
m
Individual Diameter
T
r
1
2
Individual Pitch/TPI
2
.
5
m
m
NEAREST EQUIVALENT - STUB ACME
Standard Series
1
/
2
"
-
1
0
T
P
I
Individual Diameter
1
/
2
"
Individual Pitch/TPI
1
0
T
P
I
TOLERANCES EXT. THREAD
Pitch Diameter
max
0
.
4
4
2
0
"
min
0
.
4
3
1
3
"
Major Diameter
max
0
.
5
0
0
0
"
min
0
.
4
9
5
0
"
Minor Diameter
max
0
.
3
8
0
0
"
min
0
.
3
6
4
0
"
Crest Radii
max
0
.
0
0
0
0
"
min
0
.
0
0
0
0
"
Root Radii
max
0
.
0
0
6
0
"
min
0
.
0
0
0
0
"
ASME 2G grade (most common)
Governing Authority
ASME
Thread System
ACME
Starts
1
Calculations based on:
ISO-2901-2016
ISO-2902-2016
ISO-2903-2016
ISO-2904-2020
ASME B1.5
ASME B1.8
Trapezoidal Thread
popularity:
Spec Sheet
Calculations based on:
ISO-2901-2016
ISO-2902-2016
ISO-2903-2016
ISO-2904-2020
ASME B1.5
ASME B1.8
Trapezoidal Thread
Trapezoidal Threads Fastener Gauge | Spectar | Spectar