Leader Corporation | Thread Ring & Set Plugs (Inch and Metric)

Thread Ring Gages and Set Plugs – Metric Series

Leader Corporation offers a complete line of AGD – American Gage Design, adjustable metric thread ring gages and truncated set plugs. Thread ring gages and set plugs are manufactured per ANSI/ASME B1.16M. Thread ring gages and set plugs are manufactured to an X tolerance in a 6g class of fit. Thread Set plugs are made to a class X tolerance on pitch diameter and class W tolerance on lead and angle. Metric thread ring gages and set plugs are available in coarse, fine, and special pitch sizes. Leader Corporation manufactures many types of special gages including pre-plates, multiple starts, special leads, acme threads, buttress threads, square threads, extra length thread gages, and custom gages to print. All thread ring gages and set plugs are traceable to N.I.S.T. Thread.

Ring Gages and Set Plugs – Unified Series

Leader Corporation offers a complete line of AGD – American Gage Design, unified adjustable thread ring gages and truncated set plugs. Thread ring gages and set plugs are manufactured per ANSI/ASME B1.2. Thread ring gages and set plugs are manufactured to an X tolerance in 1A, 2A and 3A Go members and 2A and 3A No go members. Thread Set plugs are made to a class X tolerance on pitch diameter and class W tolerance on lead and angle. Thread plug gages are available in UNC, UNF, UNEF, and specials. Leader Corporation manufactures many types of special gages including pre-plates, multiple starts, special leads, acme threads, buttress threads, square threads, extra length thread gages, and custom gages to print. All thread ring gages and set plugs are traceable to N.I.S.T.