Thread Gages

Thread Check Inc. manufactures a complete line of thread gages and related products used to measure screw threads and calibrate gages. We offer thread plug and ring gages, tapered pipe thread gages, straight pipe thread gages, API gages, 3-Wire thread measuring systems, tri roll thread comparators, British thread gauges, thread work plugs, and special thread gages including Acme, buttress thread gages, and custom thread gages.
All thread gages are AGD American Gage Designed. All thread gages are manufactured with gage blanks per ASME/ANSI B47.1. Thread plug gages are available in reversible design, taperlock design, and trilock design.
Reversible thread plug gages are available in thread sizes up to of an inch. Reversible thread gage members can be reversed in the collet when one side wears thus providing longer gage wear resistance. These thread plug gages are fitted in color coded green and red handles for easy identification.
Taperlock thread plug gages are available in thread sizes up to 1 inches in diameter. These thread plug gages are less expensive than reversible thread plug gages. Taperlock thread gages are considered the most popular style.
Trilock style thread plug gages are available from of an inch up to 16.00 inches and larger. These thread gages are attached to handles with a threaded bolt thru the center of the gage. They are reversible for longer gage wear life. Trilock thread gages can be supplied in a single end assembly for larger sizes to reduce weight.

Thread Gages Subcategories

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  • #0-80 UNF 2B Go/No Go Taperlock Plug Gage w/handle

    Thread Plug Gages - Taperlock Design - Chrome

    Thread Check, Inc. offers a complete line of AGD American Gage Design, unified working taperlock thread plug gages. The taperlock thread plug gage style allows for a quick and convenient replacement of the gage member into an existing handle. A worn gage member can be simply removed and a new replacement ...MORE INFO

  • Thread Ring Gages - Unified Series

    Thread Ring Gages - Unified Inch

    Thread Check, Inc. offers a complete line of AGD American Gage Design, unified adjustable thread ring gages. Thread ring gages and set plugs are manufactured per ANSI/ASME B1.2. Thread ring gages are manufactured to an X tolerance in 1A, 2A and 3A Go members and 2A and 3A No go members. Unified Series ...MORE INFO

  • #2-56 UNC 2B STI Go/NoGo Thread Plug Gage w/handle-Class X

    S.T.I. Thread Plug Gages

    Helical coil ( STI ) Plug Gages are used to gage threaded holes prior to insertion of screw thread inserts. Screw thread inserts are used to repair a damaged thread or to provide stronger thread assembly. All Helical Coil - STI thread plug gages are manufactured of oil hardened tool steel to a class ...MORE INFO

  • M1.6 x .35 6H Go/NoGo Taperlock Plug Gage w/handle

    Metric Thread Plug Gages - Taperlock Design - Chrome

    Thread Check, Inc. offers a complete line of AGD American Gage Design, metric series working taperlock thread plug gages. The taperlock thread plug gage style allows for a quick and convenient replacement of the gage member into an existing handle. A worn gage member can be simply removed and a new ...MORE INFO

  • M1.6 x .35 6H Go Reversible Plug

    Metric Thread Plug Gages - Reversible Design - Chrome

    Thread Check, Inc. offers a complete line of AGD American Gage Design, metric working reversible style thread plug gages. The reversible thread plug gage style allows for one end of the gage to be rotated so the user gets two gages in one. A worn gage end can be turned around by simply opening the ...MORE INFO

  • #0-80 UNF 2B Go Reversible Plug

    Thread Plug Gages - Reversible Design - Chrome

    Thread Check, Inc. offers a complete line of AGD American Gage Design, unified working thread plug gages in both taperlock and reversible styles. Thread plug gages are manufactured per ANSI/ASME B1.2. Thread Check, Inc. thread plug gages are manufactured to an X tolerance in class 2B or 3B. Thread ...MORE INFO

  • 1 9/16 - 8 UN 2B Go Trilock Plug Gage

    Thread Check Large Trilock Thread Plug Gages Fast Delivery

    Thread Check Inc. offers fast delivery on AGD American Gage Design Trilock Thread Plug Gages up to 4 inches in popular sizes. Trilock thread plug gages are manufactured per ANSI/ASME B1.2. Trilock thread plug gages are manufactured to class X tolerance in both class 2B and 3B classes of fit. ...MORE INFO

  • Thread Ring Gages - Metric Series

    Thread Ring Gages - Metric

    Thread Check, Inc. 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 ...MORE INFO

  • #0-80 UNF 2A Go Set Plug

    Thread Set Plug Gages - Unified Inch

    Thread Check, Inc. offers a complete line of AGD American Gage Design truncated set plugs. Set plugs are manufactured per ANSI/ASME B1.2 and 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 ...MORE INFO

  • Thread Set Plugs

    Metric Set Plug Gages

    Thread Check, Inc. 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 ...MORE INFO

  • npt pipe gages

    NPT Plug Gages per ANSI/ASME B1.20.1

    NPT general purpose pipe thread plug and ring gages are manufactured per ANSI/ASME B1.20.1. Thread Check offers a complete line of plug and ring gages to inspect General Purpose National Taper Pipe Thread from 1/16 6.0 inches. Threads made to this specification consist of external taper and internal ...MORE INFO

  • npt pipe thread gages

    NPT Ring Gages per ANSI/ASME B1.20.1

    NPT general purpose pipe thread plug and ring gages are manufactured per ANSI/ASME B1.20.1. Thread Check offers a complete line of plug and ring gages to inspect General Purpose National Taper Pipe Thread from 1/16 6.0 inches. Threads made to this specification consist of external taper and internal ...MORE INFO

  • 1/16 - 27 NPTF L1 Plug Gage member only

    NPTF Plug Gages per ANSI/ASME B1.20.5

    Thread Check Inc. offers a complete line of NPTF Dryseal gages per ANSI/ASME B1.20.5 from 1/16 3.0”. Dryseal threads are based on the American pipe thread but differ in that they are designed to seal pressure tight joints without using sealing compounds. To accomplish this seal, the thread form ...MORE INFO

  • 1/16 - 27 NPTF L1 Ring Gage

    NPTF Ring Gages per ANSI/ASME B1.20.5

    Thread Check Inc. offers a complete line of NPTF Dryseal gages per ANSI/ASME B1.20.5 from 1/16 3.0”. Dryseal threads are based on the American pipe thread but differ in that they are designed to seal pressure tight joints without using sealing compounds. To accomplish this seal, the thread form ...MORE INFO

  • 1/16 - 27 ANPT L1 Plug Gage member only

    ANPT Plug Gages

    Thread Check Inc. offers a complete range of Aeronautical National Form Taper Pipe Thread Plug Gages per SAE AS71051. ANPT thread plug gages are intended for use on pipe, plugs, fittings, and similar devices in aeronautical components and equipment requiring a sealed thread joint and where straight ...MORE INFO

  • 1/16 - 27 ANPT L1 Ring Gage

    ANPT Ring Gages

    Thread Check Inc. offers a complete range of Aeronautical National Form Taper Pipe Thread Ring Gages per SAE AS71051. ANPT thread ring gages are intended for use on pipe, plugs, fittings, and similar devices in aeronautical components and equipment requiring a sealed thread joint and where straight ...MORE INFO

  • 1/8 - 27 NPSM 2A Go Thread Set Plug Gage - P.D. .3

    NPSM Straight Pipe Thread Set Plug Gage

    NPSM straight pipe thread set plug gages are manufactured per ANSI/ASME B1.20.1. NPSM threads are designed for free fitting mechanical joints. This pipe is often used for special applications where there is no internal pressures and is often found to be more suitable to use. All straight pipe thread ...MORE INFO

  • Straight Pipe Thread Ring Gages

    NPSM Straight Pipe Thread Ring Gages

    NPSM straight pipe thread ring gages are manufactured per ANSI/ASME B1.20.1. NPSM threads are designed for free fitting mechanical joints. This pipe is often used for special applications where there is no internal pressures and is often found to be more suitable to use. All straight pipe thread ring ...MORE INFO

  • 1/8 - 27 NPSM 2B Go Thread Plug Gage - P.D. .3736"

    NPSM Straight Pipe Thread Plug Gages

    NPSM straight pipe thread plug gages are manufactured per ANSI/ASME B1.20.1. NPSM threads are designed for free fitting mechanical joints. This pipe is often used for special applications where there is no internal pressures and is often found to be more suitable to use. All straight pipe thread plug ...MORE INFO

  • 1/16 - 27 NPSF Go Thread Plug Gage

    NPSF Thread Plug Gages

    NPSF straight pipe thread plug gages are manufactured per ANSI /ASME B1.20.3 are used to inspect NPSF internal threads. This type of thread is straight instead of tapered and internal only.. The NPSF thread is considered more economical to produce than tapered internal threads, but when assembled do ...MORE INFO

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