Polygon Solutions 5/16″ hexagon plug gages are manufactured to conform with the ANSI B18.3 Standard to precision Class ZZ tolerances of 0.0002″. These 5/16″ Hex Go/No-Go gages are precision-ground from hardened M2 high-speed tool steel to provide exceptional wear resistance, dimensional stability, and long service life in production environments. Use our Go and No-Go Gages to inspect your parts for machining process variations such as form size, twist, tool wear, etc.
| 5/16″ Hex Go Gage Dimensions: | 5/16″ Hex NoGo Gage Dimensions: |
|---|---|
| 0.3125″ +0.0002″/-0″ ACROSS FLATS 0.3570″ +0.0003″/-0″ ACROSS CORNERS 0.6250″ MINIMUM FORM DEPTH |
0.3160″ +0″/-0.0002″ ACROSS FLATS 0.1490″ +/-0.0010″ Width 0.6250″ MINIMUM FORM DEPTH |




