Filter by
Thread Direction
Pitch
Material
U.S.–Mexico–Canada Agreement (USMCA) Qualifying
RoHS
Export Control Classification Number (ECCN)
Hardness
REACH
DFARS Specialty Metals
Size-Checking Gauge Class
Threaded Ring Gauges with Calibration Certificate
Not only were these gauges calibrated in a lab, but they also come with a certificate that's traceable to NIST. The certificate, sometimes called a test report and long form certificate, details the tested measurements. They’re for checking a part’s external threads to ensure they fall within tolerance.
A part is within tolerance if it’s easy to thread a go gauge onto the part but difficult to thread a no-go gauge more than two turns. Inspect faster by holding more than one ring gauge with a threaded ring gauge holder.
Go gauges check the maximum external thread size.
No-go gauges check the minimum external thread size.
Threads have different classes of fit. Thread fit designates the tightness or looseness of the mating threads. For example, inch threads with a 3A fit have tighter tolerances than threads with a 2A fit.
Inch—Class X
| Thread Size  | Thread Type | Thread Direction | Hardness | Material | Pitch Dia. Tolerance | Each | |
Go Gauge | |||||||
|---|---|---|---|---|---|---|---|
For Thread Fit Class 2A | |||||||
| 0-80 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A121 | 0000000 |
| 1-64 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A123 | 000000 |
| 1-72 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A125 | 000000 |
| 2-56 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A127 | 000000 |
| 2-64 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A129 | 000000 |
| 3-48 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A132 | 000000 |
| 3-56 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A405 | 000000 |
| 4-40 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A136 | 000000 |
| 4-48 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A138 | 000000 |
| 5-40 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A141 | 000000 |
| 5-44 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A401 | 000000 |
| 6-32 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A145 | 000000 |
| 6-40 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A147 | 000000 |
| 8-32 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A149 | 000000 |
| 8-36 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A152 | 000000 |
| 10-24 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A154 | 000000 |
| 10-32 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A156 | 000000 |
| 12-24 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A158 | 000000 |
| 12-28 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A161 | 000000 |
| 12-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A412 | 000000 |
| 1/4"-20 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A163 | 000000 |
| 1/4"-28 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A165 | 000000 |
| 1/4"-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A416 | 000000 |
| 5/16"-18 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A167 | 000000 |
| 5/16"-24 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A169 | 000000 |
| 5/16"-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A421 | 000000 |
| 3/8"-16 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A172 | 000000 |
| 3/8"-24 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A174 | 000000 |
| 3/8"-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A425 | 000000 |
| 7/16"-14 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A176 | 000000 |
| 7/16"-20 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A178 | 000000 |
| 7/16"-28 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A429 | 000000 |
| 1/2"-13 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A181 | 000000 |
| 1/2"-20 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A183 | 000000 |
| 1/2"-28 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A434 | 000000 |
| 9/16"-12 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A409 | 000000 |
| 9/16"-18 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A114 | 000000 |
| 9/16"-24 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A438 | 000000 |
| 5/8"-11 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A185 | 000000 |
| 5/8"-18 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A187 | 000000 |
| 5/8"-24 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A443 | 000000 |
| 11/16"-24 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A447 | 000000 |
| 3/4"-10 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A189 | 000000 |
| 3/4"-16 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A192 | 000000 |
| 3/4"-20 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A452 | 000000 |
| 7/8"-9 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A194 | 000000 |
| 7/8"-14 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A196 | 000000 |
| 7/8"-20 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A458 | 000000 |
| 1"-8 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A198 | 000000 |
| 1"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A201 | 000000 |
| 1"-14 | UNS | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A463 | 000000 |
| 1"-20 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A467 | 000000 |
| 1 1/8"-7 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0004" to 0" | 3160A471 | 000000 |
| 1 1/8"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A207 | 000000 |
| 1 1/4"-7 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0004" to 0" | 3160A209 | 000000 |
| 1 1/4"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A212 | 000000 |
| 1 3/8"-6 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0004" to 0" | 3160A473 | 000000 |
| 1 3/8"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A475 | 000000 |
| 1 1/2"-6 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0004" to 0" | 3160A218 | 000000 |
| 1 1/2"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A221 | 000000 |
For Thread Fit Class 3A | |||||||
| 0-80 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A119 | 000000 |
| 1-72 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A124 | 000000 |
| 2-56 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A126 | 000000 |
| 2-64 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A128 | 000000 |
| 3-56 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A406 | 000000 |
| 4-40 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A135 | 000000 |
| 4-48 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A137 | 000000 |
| 5-40 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A139 | 000000 |
| 5-44 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A402 | 000000 |
| 6-32 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A144 | 000000 |
| 6-40 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A146 | 000000 |
| 8-32 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A148 | 000000 |
| 8-36 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0002" to 0" | 3160A151 | 000000 |
| 10-24 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A153 | 000000 |
| 10-32 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A155 | 000000 |
| 12-28 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A159 | 000000 |
| 12-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A413 | 000000 |
| 1/4"-20 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A162 | 000000 |
| 1/4"-28 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A164 | 000000 |
| 1/4"-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A417 | 000000 |
| 5/16"-18 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A166 | 000000 |
| 5/16"-24 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A168 | 000000 |
| 5/16"-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A422 | 000000 |
| 3/8"-16 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A171 | 000000 |
| 3/8"-24 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A173 | 000000 |
| 3/8"-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A426 | 000000 |
| 7/16"-20 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A177 | 000000 |
| 7/16"-28 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A431 | 000000 |
| 1/2"-13 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A179 | 000000 |
| 1/2"-20 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A182 | 000000 |
| 1/2"-28 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A435 | 000000 |
| 9/16"-18 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A113 | 000000 |
| 9/16"-24 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A439 | 000000 |
| 5/8"-11 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A184 | 000000 |
| 5/8"-18 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A186 | 000000 |
| 5/8"-24 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A444 | 000000 |
| 11/16"-24 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A448 | 000000 |
| 3/4"-10 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A188 | 000000 |
| 3/4"-16 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A191 | 000000 |
| 3/4"-20 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A453 | 000000 |
| 7/8"-9 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A193 | 000000 |
| 7/8"-14 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A195 | 000000 |
| 7/8"-20 | UNEF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A459 | 000000 |
| 1"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A199 | 000000 |
| 1"-14 | UNS | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A202 | 000000 |
| 1 1/8"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A206 | 000000 |
| 1 1/4"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A211 | 000000 |
| 1 3/8"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A476 | 000000 |
| 1 1/2"-6 | UNC | Right Hand | Rockwell C60 | Tool Steel | -0.0004" to 0" | 3160A217 | 000000 |
| 1 1/2"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | -0.0003" to 0" | 3160A219 | 000000 |
No-Go Gauge | |||||||
For Thread Fit Class 2A | |||||||
| 0-80 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A223 | 000000 |
| 1-64 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A225 | 000000 |
| 1-72 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A227 | 000000 |
| 2-56 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A229 | 000000 |
| 2-64 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A232 | 000000 |
| 3-48 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A234 | 000000 |
| 3-56 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A407 | 000000 |
| 4-40 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A238 | 000000 |
| 4-48 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A241 | 000000 |
| 5-40 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A243 | 000000 |
| 5-44 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A403 | 000000 |
| 6-32 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A247 | 000000 |
| 6-40 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A249 | 000000 |
| 8-32 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A252 | 000000 |
| 8-36 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A254 | 000000 |
| 10-24 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A256 | 000000 |
| 10-32 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A258 | 000000 |
| 12-24 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A261 | 000000 |
| 12-28 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A263 | 000000 |
| 12-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A414 | 000000 |
| 1/4"-20 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A265 | 000000 |
| 1/4"-28 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A267 | 000000 |
| 1/4"-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A418 | 000000 |
| 5/16"-18 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A269 | 000000 |
| 5/16"-24 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A272 | 000000 |
| 5/16"-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A423 | 000000 |
| 3/8"-16 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A274 | 000000 |
| 3/8"-24 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A276 | 000000 |
| 3/8"-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A427 | 000000 |
| 7/16"-14 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A278 | 000000 |
| 7/16"-20 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A281 | 000000 |
| 7/16"-28 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A432 | 000000 |
| 1/2"-13 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A283 | 000000 |
| 1/2"-20 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A285 | 000000 |
| 1/2"-28 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A436 | 000000 |
| 9/16"-12 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A411 | 000000 |
| 9/16"-18 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A118 | 000000 |
| 9/16"-24 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A441 | 000000 |
| 5/8"-11 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A287 | 000000 |
| 5/8"-18 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A289 | 000000 |
| 5/8"-24 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A445 | 000000 |
| 11/16"-24 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A449 | 000000 |
| 3/4"-10 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A292 | 000000 |
| 3/4"-16 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A294 | 000000 |
| 3/4"-20 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A454 | 000000 |
| 7/8"-9 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A296 | 000000 |
| 7/8"-14 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A298 | 000000 |
| 7/8"-20 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A461 | 000000 |
| 1"-8 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A301 | 000000 |
| 1"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A303 | 000000 |
| 1"-14 | UNS | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A465 | 000000 |
| 1"-20 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A468 | 000000 |
| 1 1/8"-7 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0004" | 3160A472 | 000000 |
| 1 1/8"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A309 | 000000 |
| 1 1/4"-7 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0004" | 3160A312 | 000000 |
| 1 1/4"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A314 | 000000 |
| 1 3/8"-6 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0004" | 3160A474 | 000000 |
| 1 3/8"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A477 | 000000 |
| 1 1/2"-6 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0004" | 3160A321 | 000000 |
| 1 1/2"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A323 | 000000 |
For Thread Fit Class 3A | |||||||
| 0-80 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A222 | 000000 |
| 1-72 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A226 | 000000 |
| 2-56 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A228 | 000000 |
| 2-64 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A231 | 000000 |
| 3-56 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A408 | 000000 |
| 4-40 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A237 | 000000 |
| 4-48 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A239 | 000000 |
| 5-40 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A242 | 000000 |
| 5-44 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A404 | 000000 |
| 6-32 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A246 | 000000 |
| 6-40 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A248 | 000000 |
| 8-32 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A251 | 000000 |
| 8-36 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0002" | 3160A253 | 000000 |
| 10-24 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A255 | 000000 |
| 10-32 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A257 | 000000 |
| 12-28 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A262 | 000000 |
| 12-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A415 | 000000 |
| 1/4"-20 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A264 | 000000 |
| 1/4"-28 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A266 | 000000 |
| 1/4"-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A419 | 000000 |
| 5/16"-18 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A268 | 000000 |
| 5/16"-24 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A271 | 000000 |
| 5/16"-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A424 | 000000 |
| 3/8"-16 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A273 | 000000 |
| 3/8"-24 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A275 | 000000 |
| 3/8"-32 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A428 | 000000 |
| 7/16"-20 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A279 | 000000 |
| 7/16"-28 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A433 | 000000 |
| 1/2"-13 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A282 | 000000 |
| 1/2"-20 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A284 | 000000 |
| 1/2"-28 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A437 | 000000 |
| 9/16"-18 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A117 | 000000 |
| 9/16"-24 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A442 | 000000 |
| 5/8"-11 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A286 | 000000 |
| 5/8"-18 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A288 | 000000 |
| 5/8"-24 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A446 | 000000 |
| 11/16"-24 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A451 | 000000 |
| 3/4"-10 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A291 | 000000 |
| 3/4"-16 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A293 | 000000 |
| 3/4"-20 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A455 | 000000 |
| 7/8"-9 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A295 | 000000 |
| 7/8"-14 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A297 | 000000 |
| 7/8"-20 | UNEF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A462 | 000000 |
| 1"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A302 | 000000 |
| 1"-14 | UNS | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A466 | 000000 |
| 1 1/8"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A308 | 000000 |
| 1 1/4"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A313 | 000000 |
| 1 3/8"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A478 | 000000 |
| 1 1/2"-6 | UNC | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0004" | 3160A319 | 000000 |
| 1 1/2"-12 | UNF | Right Hand | Rockwell C60 | Tool Steel | 0" to 0.0003" | 3160A322 | 000000 |
Metric—Class X
| Thread Size | Pitch | Thread Direction | Hardness | Material | Pitch Dia. Tolerance | Each | |
Go Gauge | |||||||
|---|---|---|---|---|---|---|---|
For Thread Fit Class 6g | |||||||
| M1.6 | 0.35 mm | Right Hand | Rockwell C60 | Tool Steel | -0.005 mm to 0 mm | 3227A111 | 0000000 |
| M2 | 0.4 mm | Right Hand | Rockwell C60 | Tool Steel | -0.005 mm to 0 mm | 3227A115 | 000000 |
| M2.2 | 0.45 mm | Right Hand | Rockwell C60 | Tool Steel | -0.005 mm to 0 mm | 3227A207 | 000000 |
| M2.5 | 0.45 mm | Right Hand | Rockwell C60 | Tool Steel | -0.005 mm to 0 mm | 3227A117 | 000000 |
| M3 | 0.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.005 mm to 0 mm | 3227A121 | 000000 |
| M3.5 | 0.6 mm | Right Hand | Rockwell C60 | Tool Steel | -0.005 mm to 0 mm | 3227A123 | 000000 |
| M4 | 0.7 mm | Right Hand | Rockwell C60 | Tool Steel | -0.005 mm to 0 mm | 3227A125 | 000000 |
| M4.5 | 0.75 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A201 | 000000 |
| M5 | 0.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.005 mm to 0 mm | 3227A269 | 000000 |
| M5 | 0.8 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A129 | 000000 |
| M6 | 0.75 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A243 | 000000 |
| M6 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A132 | 000000 |
| M7 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A134 | 000000 |
| M8 | 0.75 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A261 | 000000 |
| M8 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A138 | 000000 |
| M8 | 1.25 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A136 | 000000 |
| M9 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A212 | 000000 |
| M9 | 1.25 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A214 | 000000 |
| M10 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A203 | 000000 |
| M10 | 1.25 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A143 | 000000 |
| M10 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A141 | 000000 |
| M11 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A232 | 000000 |
| M11 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A216 | 000000 |
| M12 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A152 | 000000 |
| M12 | 1.25 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A149 | 000000 |
| M12 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A147 | 000000 |
| M12 | 1.75 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A145 | 000000 |
| M14 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A234 | 000000 |
| M14 | 1.25 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A227 | 000000 |
| M14 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A154 | 000000 |
| M14 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A205 | 000000 |
| M16 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A249 | 000000 |
| M16 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A156 | 000000 |
| M16 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A158 | 000000 |
| M18 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A252 | 000000 |
| M18 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A162 | 000000 |
| M18 | 2.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A209 | 000000 |
| M20 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A229 | 000000 |
| M20 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A218 | 000000 |
| M20 | 2.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A221 | 000000 |
| M22 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A223 | 000000 |
| M22 | 2.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A225 | 000000 |
| M24 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A254 | 000000 |
| M24 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A245 | 000000 |
| M24 | 3 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A247 | 000000 |
| M26 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A236 | 000000 |
| M27 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A238 | 000000 |
| M27 | 3 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A241 | 000000 |
| M30 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A256 | 000000 |
| M30 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A258 | 000000 |
| M30 | 3.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A276 | 000000 |
| M33 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A263 | 000000 |
| M33 | 3.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A272 | 000000 |
| M35 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A274 | 000000 |
| M36 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A265 | 000000 |
| M36 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A267 | 000000 |
| M36 | 4 mm | Right Hand | Rockwell C60 | Tool Steel | -0.008 mm to 0 mm | 3227A278 | 000000 |
No-Go Gauge | |||||||
For Thread Fit Class 6g | |||||||
| M1.6 | 0.35 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.005 mm | 3227A112 | 000000 |
| M2 | 0.4 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.005 mm | 3227A116 | 000000 |
| M2.2 | 0.45 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.005 mm | 3227A208 | 000000 |
| M2.5 | 0.45 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.005 mm | 3227A118 | 000000 |
| M3 | 0.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.005 mm | 3227A119 | 000000 |
| M3.5 | 0.6 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.005 mm | 3227A122 | 000000 |
| M4 | 0.7 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.005 mm | 3227A124 | 000000 |
| M4.5 | 0.75 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A202 | 000000 |
| M5 | 0.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.005 mm | 3227A271 | 000000 |
| M5 | 0.8 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A128 | 000000 |
| M6 | 0.75 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A244 | 000000 |
| M6 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A131 | 000000 |
| M7 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A133 | 000000 |
| M8 | 0.75 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A262 | 000000 |
| M8 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A137 | 000000 |
| M8 | 1.25 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A135 | 000000 |
| M9 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A213 | 000000 |
| M9 | 1.25 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A215 | 000000 |
| M10 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A204 | 000000 |
| M10 | 1.25 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A142 | 000000 |
| M10 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A139 | 000000 |
| M11 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A233 | 000000 |
| M11 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A217 | 000000 |
| M12 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A151 | 000000 |
| M12 | 1.25 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A148 | 000000 |
| M12 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A146 | 000000 |
| M12 | 1.75 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A144 | 000000 |
| M14 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A235 | 000000 |
| M14 | 1.25 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A228 | 000000 |
| M14 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A153 | 000000 |
| M14 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A206 | 000000 |
| M16 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A251 | 000000 |
| M16 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A155 | 000000 |
| M16 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A157 | 000000 |
| M18 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A253 | 000000 |
| M18 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A159 | 000000 |
| M18 | 2.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A211 | 000000 |
| M20 | 1 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A231 | 000000 |
| M20 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A219 | 000000 |
| M20 | 2.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A222 | 000000 |
| M22 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A224 | 000000 |
| M22 | 2.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A226 | 000000 |
| M24 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A255 | 000000 |
| M24 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A246 | 000000 |
| M24 | 3 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A248 | 000000 |
| M26 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A237 | 000000 |
| M27 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A239 | 000000 |
| M27 | 3 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A242 | 000000 |
| M30 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A257 | 000000 |
| M30 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A259 | 000000 |
| M30 | 3.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A277 | 000000 |
| M33 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A264 | 000000 |
| M33 | 3.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A273 | 000000 |
| M35 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A275 | 000000 |
| M36 | 1.5 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A266 | 000000 |
| M36 | 2 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A268 | 000000 |
| M36 | 4 mm | Right Hand | Rockwell C60 | Tool Steel | 0 mm to 0.008 mm | 3227A279 | 000000 |
Threaded Ring Gauges
Check a part’s external threads to make sure they fall within tolerance. You can use these for bolts, threaded rods, bits, and more. All gauges come with a manufacturer’s certificate of accuracy, also known as a certificate of compliance or a short form certification, that verifies the thread sizes are within tolerance.
The part is within tolerance if it’s easy to thread a go gauge onto, but difficult to thread a no-go gauge more than two turns. Use a threaded ring gauge holder to keep two gauges on hand at once for faster inspection.
Go gauges check the maximum external thread size.
No-go gauges check the minimum external thread size.
Threads have different classes of fit. Thread fit designates the tightness or looseness of the mating threads. For example, inch threads with a 3A fit have tighter tolerances than threads with a 2A fit.
Inch
| Thread Size | Thread Type | Hardness | Material | Choose a For Thread Fit | Thread Direction | Pitch Dia. Tolerance | Each | |
Go Gauge | ||||||||
|---|---|---|---|---|---|---|---|---|
Class X | ||||||||
| 0-80 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0002" to 0" | 2356A301 | 0000000 | |
| 1-64 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | -0.0002" to 0" | 2356A501 | 000000 |
| 1-72 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0002" to 0" | 2356A303 | 000000 | |
| 2-56 | UNC | Rockwell C60 | Tool Steel | Right Hand | -0.0002" to 0" | 2356A304 | 000000 | |
| 2-64 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0002" to 0" | 2356A011 | 000000 | |
| 3-48 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | -0.0002" to 0" | 2356A113 | 000000 |
| 3-56 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0002" to 0" | 2356A013 | 000000 | |
| 4-40 | UNC | Rockwell C60 | Tool Steel | Right Hand | -0.0002" to 0" | 2356A308 | 000000 | |
| 4-48 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0002" to 0" | 2356A309 | 000000 | |
| 5-40 | UNC | Rockwell C60 | Tool Steel | Right Hand | -0.0002" to 0" | 2356A311 | 000000 | |
| 5-44 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0002" to 0" | 2356A015 | 000000 | |
| 6-32 | UNC | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A313 | 000000 | |
| 6-40 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0002" to 0" | 2356A314 | 000000 | |
| 8-32 | UNC | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A315 | 000000 | |
| 8-36 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0002" to 0" | 2356A316 | 000000 | |
| 10-24 | UNC | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A317 | 000000 | |
| 10-32 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A318 | 000000 | |
| 12-24 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | -0.0003" to 0" | 2356A121 | 000000 |
| 12-28 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A017 | 000000 | |
| 12-32 | UNEF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A019 | 000000 | |
| 1/4"-20 | UNC | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A322 | 000000 | |
| 1/4"-28 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A323 | 000000 | |
| 1/4"-32 | UNEF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A022 | 000000 | |
| 5/16"-18 | UNC | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A324 | 000000 | |
| 5/16"-24 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A325 | 000000 | |
| 5/16"-32 | UNEF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A024 | 000000 | |
| 3/8"-16 | UNC | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A326 | 000000 | |
| 3/8"-24 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A327 | 000000 | |
| 3/8"-32 | UNEF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A026 | 000000 | |
| 7/16"-14 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | -0.0003" to 0" | 2356A127 | 000000 |
| 7/16"-20 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A329 | 000000 | |
| 7/16"-28 | UNEF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A028 | 000000 | |
| 1/2"-13 | UNC | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A331 | 000000 | |
| 1/2"-20 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A332 | 000000 | |
| 1/2"-28 | UNEF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A031 | 000000 | |
| 9/16"-12 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | -0.0003" to 0" | 2356A547 | 000000 |
| 9/16"-18 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A181 | 000000 | |
| 9/16"-24 | UNEF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A033 | 000000 | |
| 5/8"-11 | UNC | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A333 | 000000 | |
| 5/8"-18 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A334 | 000000 | |
| 5/8"-24 | UNEF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A035 | 000000 | |
| 11/16"-24 | UNEF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A037 | 000000 | |
| 3/4"-10 | UNC | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A335 | 000000 | |
| 3/4"-16 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A336 | 000000 | |
| 3/4"-20 | UNEF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A039 | 000000 | |
| 7/8"-9 | UNC | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A337 | 000000 | |
| 7/8"-14 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A338 | 000000 | |
| 7/8"-20 | UNEF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A042 | 000000 | |
| 1"-8 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | -0.0004" to 0" | 2356A135 | 000000 |
| 1"-12 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A341 | 000000 | |
| 1"-14 | UNS | Rockwell C60 | Tool Steel | Class 2A | Right Hand | -0.0003" to 0" | 2356A572 | 000000 |
| 1"-14 | UNS | Rockwell C60 | Tool Steel | Class 3A | Right Hand | -0.0003" to 0" | 23555A17 | 000000 |
| 1"-20 | UNEF | Rockwell C60 | Tool Steel | Class 2A | Right Hand | -0.0003" to 0" | 2356A578 | 000000 |
| 1 1/8"-7 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | -0.0004" to 0" | 2356A581 | 000000 |
| 1 1/8"-12 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A344 | 000000 | |
| 1 1/4"-7 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | -0.0004" to 0" | 2356A138 | 000000 |
| 1 1/4"-12 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A346 | 000000 | |
| 1 1/2"-6 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | -0.0004" to 0" | 2356A589 | 000000 |
| 1 1/2"-12 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A048 | 000000 | |
| 1 3/8"-6 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | -0.0004" to 0" | 2356A583 | 000000 |
| 1 3/8"-12 | UNF | Rockwell C60 | Tool Steel | Right Hand | -0.0003" to 0" | 2356A046 | 000000 | |
No-Go Gauge | ||||||||
Class X | ||||||||
| 0-80 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0002" | 2356A401 | 000000 | |
| 1-64 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | 0" to 0.0002" | 2356A502 | 000000 |
| 1-72 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0002" | 2356A403 | 000000 | |
| 2-56 | UNC | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0002" | 2356A404 | 000000 | |
| 2-64 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0002" | 2356A012 | 000000 | |
| 3-48 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | 0" to 0.0002" | 2356A613 | 000000 |
| 3-56 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0002" | 2356A014 | 000000 | |
| 4-40 | UNC | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0002" | 2356A408 | 000000 | |
| 4-48 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0002" | 2356A409 | 000000 | |
| 5-40 | UNC | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0002" | 2356A411 | 000000 | |
| 5-44 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0002" | 2356A016 | 000000 | |
| 6-32 | UNC | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A413 | 000000 | |
| 6-40 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0002" | 2356A414 | 000000 | |
| 8-32 | UNC | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A415 | 000000 | |
| 8-36 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0002" | 2356A416 | 000000 | |
| 10-24 | UNC | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A417 | 000000 | |
| 10-32 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A418 | 000000 | |
| 12-24 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | 0" to 0.0003" | 2356A721 | 000000 |
| 12-28 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A018 | 000000 | |
| 12-32 | UNEF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A021 | 000000 | |
| 1/4"-20 | UNC | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A422 | 000000 | |
| 1/4"-28 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A423 | 000000 | |
| 1/4"-32 | UNEF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A023 | 000000 | |
| 5/16"-18 | UNC | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A424 | 000000 | |
| 5/16"-24 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A425 | 000000 | |
| 5/16"-32 | UNEF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A025 | 000000 | |
| 3/8"-16 | UNC | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A426 | 000000 | |
| 3/8"-24 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A427 | 000000 | |
| 3/8"-32 | UNEF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A027 | 000000 | |
| 7/16"-14 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | 0" to 0.0003" | 2356A727 | 000000 |
| 7/16"-20 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A429 | 000000 | |
| 7/16"-28 | UNEF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A029 | 000000 | |
| 1/2"-13 | UNC | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A431 | 000000 | |
| 1/2"-20 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A432 | 000000 | |
| 1/2"-28 | UNEF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A032 | 000000 | |
| 9/16"-12 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | 0" to 0.0003" | 2356A548 | 000000 |
| 9/16"-18 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A185 | 000000 | |
| 9/16"-24 | UNEF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A034 | 000000 | |
| 5/8"-11 | UNC | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A433 | 000000 | |
| 5/8"-18 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A434 | 000000 | |
| 5/8"-24 | UNEF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A036 | 000000 | |
| 11/16"-24 | UNEF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A038 | 000000 | |
| 3/4"-10 | UNC | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A435 | 000000 | |
| 3/4"-16 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A436 | 000000 | |
| 3/4"-20 | UNEF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A041 | 000000 | |
| 7/8"-9 | UNC | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A437 | 000000 | |
| 7/8"-14 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A438 | 000000 | |
| 7/8"-20 | UNEF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A043 | 000000 | |
| 1"-8 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | 0" to 0.0004" | 2356A735 | 000000 |
| 1"-12 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A441 | 000000 | |
| 1"-14 | UNS | Rockwell C60 | Tool Steel | Class 2A | Right Hand | 0" to 0.0003" | 2356A576 | 000000 |
| 1"-14 | UNS | Rockwell C60 | Tool Steel | Class 3A | Right Hand | 0" to 0.0003" | 2356A577 | 000000 |
| 1"-20 | UNEF | Rockwell C60 | Tool Steel | Class 2A | Right Hand | 0" to 0.0003" | 2356A579 | 000000 |
| 1 1/8"-7 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | 0" to 0.0004" | 2356A582 | 000000 |
| 1 1/8"-12 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A444 | 000000 | |
| 1 1/4"-7 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | 0" to 0.0004" | 2356A738 | 000000 |
| 1 1/4"-12 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A446 | 000000 | |
| 1 1/2"-6 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | 0" to 0.0004" | 2356A591 | 000000 |
| 1 1/2"-12 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A049 | 000000 | |
| 1 3/8"-6 | UNC | Rockwell C60 | Tool Steel | Class 2A | Right Hand | 0" to 0.0004" | 2356A584 | 000000 |
| 1 3/8"-12 | UNF | Rockwell C60 | Tool Steel | Right Hand | 0" to 0.0003" | 2356A047 | 000000 | |
Metric
| Thread Size | Pitch | Hardness | Material | For Thread Fit | Thread Direction | Pitch Dia. Tolerance | Each | |
Go Gauge | ||||||||
|---|---|---|---|---|---|---|---|---|
Class X | ||||||||
| M1.6 | 0.35 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.005 mm to 0 mm | 23575A102 | 0000000 |
| M2 | 0.4 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.005 mm to 0 mm | 23575A106 | 000000 |
| M2.2 | 0.45 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.005 mm to 0 mm | 23575A201 | 000000 |
| M2.5 | 0.45 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.005 mm to 0 mm | 23575A108 | 000000 |
| M3 | 0.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.005 mm to 0 mm | 23575A112 | 000000 |
| M3.5 | 0.6 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.005 mm to 0 mm | 23575A114 | 000000 |
| M4 | 0.7 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.005 mm to 0 mm | 23575A116 | 000000 |
| M4.5 | 0.75 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A203 | 000000 |
| M5 | 0.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.005 mm to 0 mm | 23575A205 | 000000 |
| M5 | 0.8 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A12 | 000000 |
| M6 | 0.75 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A207 | 000000 |
| M6 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A122 | 000000 |
| M7 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A209 | 000000 |
| M8 | 0.75 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A212 | 000000 |
| M8 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A13 | 000000 |
| M8 | 1.25 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A128 | 000000 |
| M9 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A214 | 000000 |
| M9 | 1.25 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A216 | 000000 |
| M10 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A218 | 000000 |
| M10 | 1.25 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A134 | 000000 |
| M10 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A132 | 000000 |
| M11 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A221 | 000000 |
| M11 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A223 | 000000 |
| M12 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A142 | 000000 |
| M12 | 1.25 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A14 | 000000 |
| M12 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A138 | 000000 |
| M12 | 1.75 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A136 | 000000 |
| M14 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A225 | 000000 |
| M14 | 1.25 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A227 | 000000 |
| M14 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A144 | 000000 |
| M14 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A229 | 000000 |
| M16 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A232 | 000000 |
| M16 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A146 | 000000 |
| M16 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A148 | 000000 |
| M18 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A234 | 000000 |
| M18 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A152 | 000000 |
| M18 | 2.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A236 | 000000 |
| M20 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A238 | 000000 |
| M20 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A241 | 000000 |
| M20 | 2.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A243 | 000000 |
| M22 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A245 | 000000 |
| M22 | 2.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A247 | 000000 |
| M24 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A249 | 000000 |
| M24 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A252 | 000000 |
| M24 | 3 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A254 | 000000 |
| M26 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A256 | 000000 |
| M27 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A258 | 000000 |
| M27 | 3 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A261 | 000000 |
| M30 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A263 | 000000 |
| M30 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A265 | 000000 |
| M30 | 3.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A267 | 000000 |
| M33 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A269 | 000000 |
| M33 | 3.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A272 | 000000 |
| M35 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A274 | 000000 |
| M36 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A276 | 000000 |
| M36 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A278 | 000000 |
| M36 | 4 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | -0.008 mm to 0 mm | 23575A281 | 000000 |
No-Go Gauge | ||||||||
Class X | ||||||||
| M1.6 | 0.35 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.005 mm | 23575A103 | 000000 |
| M2 | 0.4 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.005 mm | 23575A107 | 000000 |
| M2.2 | 0.45 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.005 mm | 23575A202 | 000000 |
| M2.5 | 0.45 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.005 mm | 23575A109 | 000000 |
| M3 | 0.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.005 mm | 23575A111 | 000000 |
| M3.5 | 0.6 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.005 mm | 23575A113 | 000000 |
| M4 | 0.7 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.005 mm | 23575A115 | 000000 |
| M4.5 | 0.75 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A204 | 000000 |
| M5 | 0.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.005 mm | 23575A206 | 000000 |
| M5 | 0.8 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A119 | 000000 |
| M6 | 0.75 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A208 | 000000 |
| M6 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A121 | 000000 |
| M7 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A211 | 000000 |
| M8 | 0.75 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A213 | 000000 |
| M8 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A129 | 000000 |
| M8 | 1.25 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A127 | 000000 |
| M9 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A215 | 000000 |
| M9 | 1.25 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A217 | 000000 |
| M10 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A219 | 000000 |
| M10 | 1.25 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A133 | 000000 |
| M10 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A131 | 000000 |
| M11 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A222 | 000000 |
| M11 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A224 | 000000 |
| M12 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A141 | 000000 |
| M12 | 1.25 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A139 | 000000 |
| M12 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A137 | 000000 |
| M12 | 1.75 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A135 | 000000 |
| M14 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A226 | 000000 |
| M14 | 1.25 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A228 | 000000 |
| M14 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A143 | 000000 |
| M14 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A231 | 000000 |
| M16 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A233 | 000000 |
| M16 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A145 | 000000 |
| M16 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A147 | 000000 |
| M18 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A235 | 000000 |
| M18 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A149 | 000000 |
| M18 | 2.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A237 | 000000 |
| M20 | 1 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A239 | 000000 |
| M20 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A242 | 000000 |
| M20 | 2.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A244 | 000000 |
| M22 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A246 | 000000 |
| M22 | 2.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A248 | 000000 |
| M24 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A251 | 000000 |
| M24 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A253 | 000000 |
| M24 | 3 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A255 | 000000 |
| M26 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A257 | 000000 |
| M27 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A259 | 000000 |
| M27 | 3 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A262 | 000000 |
| M30 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A264 | 000000 |
| M30 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A266 | 000000 |
| M30 | 3.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A268 | 000000 |
| M33 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A271 | 000000 |
| M33 | 3.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A273 | 000000 |
| M35 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A275 | 000000 |
| M36 | 1.5 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A277 | 000000 |
| M36 | 2 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A279 | 000000 |
| M36 | 4 mm | Rockwell C60 | Tool Steel | Class 6g | Right Hand | 0 mm to 0.008 mm | 23575A282 | 000000 |