X Tolerance for Go and Not Go Thread Gages

X TOLERANCE FOR GO AND NOT GO THREAD GAGES
TPI Lead (+/-) Half Angle (+/-) Major and Minor Diameter Pitch Diameter
To and Including 4" Above 4" Diameter To and Including 1-1/2" Above 1-1/2" to 4" Above 4" to 8"
800.000230 min0.00030.0002
720.000230 min0.00030.0002
640.000230 min0.00040.0002
560.000230 min0.00040.00020.0003
480.000230 min0.00040.00020.0003
440.000220 min0.00040.00020.0003
400.000220 min0.00040.00020.0003
360.000220 min0.00040.00020.0003
320.000315 min0.00050.00070.00030.00040.0005
280.000315 min0.00050.00070.00030.00040.0005
240.000315 min0.00050.00070.00030.00040.0005
200.000315 min0.00050.00070.00030.00040.0005
180.000310 min0.00050.00070.00030.00040.0005
160.000310 min0.00060.00090.00030.00040.0006
140.000310 min0.00060.00090.00030.00040.0006
130.000310 min0.00060.00090.00030.00040.0006
120.000310 min0.00060.00090.00030.00040.0006
110.000310 min0.00060.00090.00030.00040.0006
100.000310 min0.00060.00090.00030.00040.0006
90.000310 min0.00070.00110.00030.00040.0006
80.00045 min0.00070.00110.00040.00050.0006
70.00045 min0.00070.00110.00040.00050.0006
60.00045 min0.00080.00130.00040.00050.0006
50.00045 min0.00080.00130.00050.0006
4.50.00045 min0.00080.00130.00050.0006
40.00045 min0.00090.00150.00050.0006

Thread gages are made to class X tolerances unless otherwise specified on orders or drawings.

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