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Vermont Thread Ring Gauges are used to inspect external product threads on screws, bolts and studs while Thread Plug Gages are used to inspect, calibrate and set thread ring gages.

• Available in both Unified Inch(UNF) or Metric Series(M) product threads.
• Marked with nominal size, threads per inch or pitch.
• Comes in Go/No Go set or individual member.
• NIST traceable
• Custom gauge sizes or in Left Hand Unified and Metric can be requested for special quote.

Note as highly specific item, please drop us an email before any order.

• Kindly specify full info on units, size and tolerance.
• Eg. Thread plug gauge M8.0x1.25 – 6H, Thread Ring gauge UNEF 5/16-32-2A

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