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Blog
Thread Gages 101
Standard Pitch Diameter Chart
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Gage Assembly
2018-03-28T10:25:10-05:00
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National Pipe Straight Mechanical (NPSM) Thread Setting Plug Gages
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Advanced Search in National Pipe Straight Mechanical (NPSM) Thread Setting Plug Gages
Unit of Measure
Imperial
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Technical Specs
Thread Size
No Preference
1/8-27
1/4-18
1/2-14
3/4-14
3/8-18
1 to 11-1/2
1-1/2 to 11-1/2
1-1/4 to 11-1/2
2 to 11-1/2
2-1/2 to 8
3-8
External Thread 2A (in)
No Preference
0.3689
0.3689 to 0.3725
0.3725
0.4859
0.4859 to 0.4903
0.4903
0.6211
0.6211 to 0.6256
0.6256
0.7718
0.7718 to 0.7769
0.7769
0.9820
0.9820 to 0.9873
0.9873
1.2311
1.2311 to 1.2369
1.2369
1.5756
1.5756 to 1.5816
1.5816
1.8144
1.8144 to 1.8205
1.8205
2.2882
2.2882 to 2.2944
2.2944
2.7526
2.7526 to 2.7600
2.7600
3.3786
3.3786 to 3.3862
3.3862
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