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Thread Check supplies a complete range of Hex plug Gages per ASME B18.3. The standard 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 Plug gages in fractional sizes from .028" to 1.00" and metric sizes from .70mm to 24.00mm. Gages are manufactured from oil hardened tool steel with a minimum HRC of 60 HRC. Thread Check Inc. can also build custom hex plug gages per customer specifications.
Thread Check, Inc. offers a complete line of GO/NOGO Hex plug gages manufactured to both specs ANSI/ASME B107.17M and ANSI B18.3. Special diameter Hex gages are also available. Hex gages are perfect for inspecting machine head fasteners.