Thread Ring Gages

CLASS X TOLERANCE – RH – STEEL

Nominal Size
.060   0 – 80
.073   1 – 64
.073   1 – 72
.086   2 – 56
.086   2 – 64
.099   3 – 48
.099   3 – 56
.112   4 – 40
.112   4 – 48
.125   5 – 40
.125   5 – 44
.138   6 – 32
.138   6 – 40
.164   8 – 32
.164   8 – 36
.190   10 – 24
.190   10 – 32
.216   12 – 24
216   12 – 28
1/4 – 20
1/4 – 28
5/16 – 18
5/16 – 24
3/8 – 16
3/8 – 24
7/16 – 14
7/16 – 20
1/2 – 13
1/2 – 20
9/16 – 12
9/16 – 18
5/8 – 11
5/8 – 18
3/4 – 10
3/4 – 16
7/8 – 9
7/8 – 14
1 – 8
1 – 12
1 – 14
1-1/8 – 7
1-1/8 – 12
1-1/4 – 7
1-1/4 – 12
1-3/8 – 6
1-3/8 – 12
1-1/2 – 6
1-1/2 – 12
Nominal Size
1.6 x 0.35
M   2 x 0.4
M   2.5 x 0.45
M   3 x 0.5
M   3.5 x 0.6
M   4 x 0.7
M   5 x 0.8
M   6 x 1.0
M   8 x 1.25
M   8 x 1.0
M   10 x 1.5
M   10 x 1.25
M   10 x 1.0
M   10 x 0.75
M   12 x 1.75
M   12 x 1.5
M   12 x 1.25
M   12 x 1.0
M   14 x 2.0
M   14 x 1.5
M   15 x 1.0
M   16 x 2.0
M   16 x 1.5
M   17 x 1.0
M   18 x 1.5
M   20 x 2.5
M   20 x 1.5
M   20 x 1.0
M   22 x 2.5
M   22 x 1.5
M   24 x 3.0
M   24 x 2.0
M   25 x 1.5
M   27 x 3.0
M   27 x 2.0
M   30 x 3.0
M   30 x 2.0
M   30 x 1.5
M   33 x 2.0
M   35 x 1.5
M   36 x 4.0
M   36 x 2.0
M   39 x 2.0

Inch

Nominal Size
12 – 32
1/4 – 32
5/16 – 32
3/8 – 32
7/16 – 28
1/2 – 28
9/16 – 24
5/8 – 24
11/16 – 24
3/4 – 20
13/16 – 20
7/8 – 20
15/16 – 20
1 – 20
1-1/16 – 18
1-1/8 – 18
1-3/16 – 18
1-1/4 – 18
1-5/16 – 18
1-3/8 – 18
1-7/16 – 18
1-1/2 – 18

Class

2A, 3A

Root Relieved Thread Ring Gages

Thread ring gages are root relieved for longer and more accurate gaging life. A root clearance at the major
diameter eliminates any possibility of interference from the full form of the setting plug and major diameter of
the part being checked. This gives assurance that flanks of thread are making proper contact.

  • Graphitic tool steel for superior quality and longer wear
  • Heat treated and cold treated for extreme stability.
  • Lapped for extra precision and longer wear.

Hard Chrome

Add 10% for hard chrome gages.