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    26 Products

    Threaded Plug Gauges with Handle for Pipe Threads

    Image of Product. Front orientation. Plug Gauges. Threaded Plug Gauges with Handle for Pipe Threads, NPT Thread.

    NPT Thread

    Verify whether pipe fitting threads fall within tolerance. These gauges are attached to a handle, giving you a solid gripping point to thread and unthread them quickly. All are precisely manufactured to tight thread tolerances. If the gauges wear down, you can install new ones (not included) on the taperlock handle.
    NPT Thread—Gauges with NPT, NPTF, and BSPT threads have a notch to indicate whether the threads you’re checking are within tolerance. If it takes no more than one turn for the notch to sit flush against the end of your fitting, the threads are within tolerance.
    Plug Gauges with Calibration Certificate Traceable to NIST—Gauges with a calibration certificate traceable to NIST were calibrated in a lab. The certificate, sometimes called a test report or long-form certificate, details the tested measurements.
    Plug Gauges
    Plug Gauges with Calibration
    Certificate Traceable to NIST
    Pipe
    Size
    Pitch Dia.
    Tolerance
    Hardness
    Material
    Features
    Each
    Each
    NPT Thread
    1/16
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle2365A1100000002121A1110000000
    1/8
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle2365A1110000002121A112000000
    1/4
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle2365A1120000002121A113000000
    3/8
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle2365A1130000002121A114000000
    1/2
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle2365A1140000002121A115000000
    3/4
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle2365A1150000002121A116000000
    1
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle2365A1160000002121A117000000
    1 1/4
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle2365A1170000002121A118000000
    1 1/2
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle2365A1180000002121A119000000
    2
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle2365A1190000002121A121000000
    2 1/2
    		-0.0005" to 0.0005"Rockwell C60Tool SteelTaperlock Handle2365A1210000002121A122000000
    3
    		-0.0005" to 0.0005"Rockwell C60Tool SteelTaperlock Handle2365A2220000002121A144000000
    4
    		-0.0005" to 0.0005"Rockwell C60Tool SteelTaperlock Handle2365A2250000002121A146000000
     
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