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    70 Products

    Pipe Thread and Thread Pitch Identifiers

    Image of Product. Front orientation. Thread Size Identifiers. Pipe Thread and Thread Pitch Identifiers.
    In addition to checking NPT and BSPT pipe sizes, use the two included gauges for measuring thread pitch.
    For Use
    With
    For Thread
    Type
    For Pipe Size
    For Gender
    Wd.
    Ht.
    Thk.
    Thread Size Identifier
    Material
    Thread Pitch Identifier
    Material
    Color
    Each
    PipeBSPT, NPT1/8, 1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 2
    		Female, Male9"4 1/4"1/4"PlasticSteelBlue5887T100000
     

    Threaded Plug Gauges with Handle for Pipe Threads

    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, NPTF Thread, and BSPT 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.
    NPSM Thread and BSPP Thread—Use gauges with NPSM and BSPP threads for go/no-go tests. The end with a go gauge checks the minimum internal thread size, and the end with a no-go gauge checks the maximum. Your fitting is within tolerance if it’s easy to thread in the go gauge but difficult to thread the no-go gauge more than two turns.
    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
    Image of Product. Front orientation. Plug Gauges. Threaded Plug Gauges with Handle for Pipe Threads, 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
     
    NPTF Thread
    Image of Product. Front orientation. Plug Gauges. Threaded Plug Gauges with Handle for Pipe Threads, NPTF Thread.
    1/16
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle6744N320000006744N113000000
    1/8
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle6744N330000006744N114000000
    1/4
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle6744N340000006744N115000000
    3/8
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle6744N350000006744N116000000
    1/2
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle6744N360000006744N117000000
    3/4
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle6744N370000006744N118000000
     
    NPSM Thread
    Image of Product. Front orientation. Plug Gauges. Threaded Plug Gauges with Handle for Pipe Threads, NPSM Thread.
    1/8
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle6744N11000000———0
    1/4
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle6744N12000000———0
    3/8
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle6744N13000000———0
    1/2
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle6744N14000000———0
    3/4
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle6744N15000000———0
     
    BSPT Thread
    Image of Product. Front orientation. Plug Gauges. Threaded Plug Gauges with Handle for Pipe Threads, BSPT Thread.
    1/8
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle6744N210000006744N101000000
    1/4
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle6744N220000006744N102000000
    3/8
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle6744N230000006744N103000000
    1/2
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle6744N240000006744N104000000
     
    BSPP Thread
    Image of Product. Front orientation. Plug Gauges. Threaded Plug Gauges with Handle for Pipe Threads, BSPP Thread.
    1/8
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle6744N250000006744N105000000
    1/4
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle6744N260000006744N106000000
    3/8
    		-0.0002" to 0.0002"Rockwell C60Tool SteelTaperlock Handle6744N270000006744N107000000
    1/2
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle6744N280000006744N108000000
    3/4
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle6744N290000006744N109000000
    1
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle6744N30000006744N111000000
    1 1/4
    		-0.0003" to 0.0003"Rockwell C60Tool SteelTaperlock Handle6744N310000006744N112000000
     

    Grease Fitting Size Identifiers

    Image of Product. Front orientation. Thread Size Identifiers. Grease Fitting Size Identifiers.
    Take the guesswork out of determining the thread type and size of a grease fitting. Screw the shank of a grease fitting into the labeled holes of these identifiers until you find the one that fits.
    For Use With
    For Thread Type
    For Thread
    Location
    For Thread Size
    For Screw
    Size
    For Pipe
    Size
    Wd.
    Ht.
    Thk.
    Each
    Inch/Metric
     
    Aluminum
    Grease FittingsNPT, SAE-LT, BSW, UNF, BSPT, BSF, MetricExternal3/16"-32, 1/4"-20, 1/4"-26, 1/4"-28, 5/16"-18, 5/16"-22, 5/16"-24, 3/8"-20, 3/8"-24, 1/2"-12,
    M6 × 0.75 mm, M6 × 1 mm, M8 × 1 mm, M8 × 1.25 mm, M10 × 1 mm, M10 × 1.5 mm    		1/8", 1/4"
    		1/8, 1/4, 3/8
    		8 1/2"3"1/4"6672N11000000
     

    Pipe Thread Identifiers

    Image of Product. Front orientation. Thread Size Identifiers. Pipe Thread Identifiers.
    Check external NPT thread size and taper.
    For Use
    With
    For Thread
    Type
    For Thread
    Location
    For Pipe Size
    Wd.
    Ht.
    Thk.
    Color
    Each
     
    Aluminum
    PipeNPT
    		External1/16, 1/8, 1/4, 3/8, 1/2
    		2"3"1/4"Blue1980A1000000
     

    Thread Identifier Sets

    Image of Product. Front orientation. Thread Size Identifiers. Thread Identifier Sets.
    Set includes calipers and gauges to identify external and internal threads.
    Container
    For Use With
    For Thread Type
    For Thread
    Location
    Type
    Material
    Includes
    Each
    Inch/Metric
     
    Steel
    Screws, Bolts, Threaded Rods, Nuts, PipeNPT, UNC, UNF, BSPT, BSPP, MetricExternal/InternalFolding CasePlasticCaliper, Instruction Book, Two Steel Angle Gauges, Two Steel Gauges7863K1000000
     

    Threads per Inch and Thread Pitch Size Checkers

    Image of ProductInUse. Front orientation. Thread Size Identifiers. Threads per Inch and Thread Pitch Size Checkers.
    Image of Attribute. Front orientation. Contains Annotated. Thread Size Identifiers. Threads per Inch and Thread Pitch Size Checkers.
    Inspect fasteners and verify threads with this checker. It includes three wires for each of the pitch diameters. Select the wire that best fits the threads; then calculate the pitch diameter with the equations provided.
    Wire
    Container
    For Use With
    For Thread Type
    For Thread
    Location
    For Threads per In.
    For Thread Pitch, mm
    For Acme Threads per In.
    No. of
    Wires
    Lg.
    Material
    Type
    Material
    Each
    Inch/Metric
    Screws, Bolts, Threaded Rods, PipeNPT, UNC, UNF, Metric, AcmeExternal3, 3 1/2, 4, 4 1/2, 5, 5 1/2, 6, 7, 7 1/2, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 16, 18, 20, 24, 27, 28, 32, 36, 40, 44, 480.5, 0.6, 0.7, 0.75, 0.8, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 63, 4, 5, 6, 8, 10, 12, 14, 16482 3/4"Stainless Steel
    		PouchVinyl Plastic2082A1000000
     
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