Sowant Precision Gage  supplies a complete range of Hex Plug Gages per ANSI B18.3 and ANSI/ASME B107.17M. Hex plug gauges per ASME B107.17M are used to inspect wrench opening and spark plug wrench opening for inch and metric sizes. Hex plug gauge sizes range in inches covers 1/8 to 3.0" and 2.0mm to 75mm in metric. The standard covers hex plug gage designs and square gage designs. Hex plug gauges per ASME B18.3 covers dimensional data for various types of hexagon and spline socket cap screws, shoulder screws, set screws, and hexagon and spline keys recognized as the American Standard. Thread Check supplies ASME B18.3 gages in fractional sizes from .028" to 1.00" and metric sizes from .70mm to 24.00mm. 

Hex Gages

Hex gages can be used to inspect wrench openings and spark plug wrench openings. If you need to inspect machine head fasteners or ensure hexagon holes of parts have been machined properly. Go/NoGo Hex plug gages are manufactured to ASME B107.17M and ASME B18.3. Special diameter hex gages can be quoted.

24mm Steel Hex Plug Go/NoGo (Plus/Minus) Double-end Assembly ANSI B18.3.1M

7/8" Steel Hex Plug Go/NoGo (Plus/Minus) Double-end Assembly ANSI B18.3

5/8" Steel Hex Plug Go/NoGo (Plus/Minus) Double-end Assembly ANSI B18.3

9/16" Steel Hex Plug Go/NoGo (Plus/Minus) Double-end Assembly ANSI B18.3

1/2" Steel Hex Plug Go/NoGo (Plus/Minus) Double-end Assembly ANSI B18.3

1/4" Steel Hex Plug Go/NoGo (Plus/Minus) Double-end Assembly ANSI B18.3

3/4" Steel Hex Plug Go/NoGo (Plus/Minus) Double-end Assembly ANSI B18.3

3/16" Steel Hex Plug Go/NoGo (Plus/Minus) Double-end Assembly ANSI B18.3

5/16" Steel Hex Plug Go/NoGo (Plus/Minus) Double-end Assembly ANSI B18.3

1/8" Steel Hex Plug Go/NoGo (Plus/Minus) Double-end Assembly ANSI B18.3