GLOBAL SOLUTIONS: We ship internationally and work with companies worldwide.

Thread Gages & Thread Measurement

Thread Gages & Thread Measurement

Insize Thread Gages & Thread Measurement

Authorized Insize distributor  |  Ships direct from Insize  |  Quote reply same day

Insize thread gages for accepting or rejecting threaded parts: GO and NO GO ring gages for external threads and plug gages for internal threads in metric, American (UN), NPT, BSPT and G-series pipe threads, plus 3-wires, screw thread micrometer tips and thread measuring instruments.

Choosing between options

If you need to…ChooseExample
Check an external threadGO ring plus the matching NO GO ring4120-36
Check an internal threadThread plug gage4130-36
Measure pitch diameter with a micrometer3-wires sized to the pitch7382-24

Before you order

  • GO and NO GO rings are separate part numbers (NO GO ends in N); order both to check a thread fully.
  • For 60° threads the best wire diameter is 0.57735 × pitch; pick the 3-wire size for your pitch.
  • Ships direct from Insize. Most items are in stock; we confirm your ship date by email after you order.

← All Precision Measuring categories

Need help choosing or a volume price?
Send thread size, pitch, class and GO / NO GO and the quantity — we reply the same day. (210) 494-1997 · sales@ldewitt.net
Request a Quote
  • Insize 7382-211 precision measuring tool

    Insize 7382-211 – 3-Wires, .0285IN/0.725MM

    Insize

    $418.00
    Insize 7382-211 – 3-Wires, .0285IN/
    7382-211
    SKU:
    7382-211
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-211
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640361999
    Package Weight:
    0.04 lb
    Package Length:
    1.57 in
    Package Width:
    1.57 in
    Package Height:
    0.59 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-212 precision measuring tool

    Insize 7382-212 – 3-Wires, .0352IN/0.895MM

    Insize

    $418.00
    Insize 7382-212 – 3-Wires, .0352IN/
    7382-212
    SKU:
    7382-212
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-212
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640362002
    Package Weight:
    0.04 lb
    Package Length:
    1.73 in
    Package Width:
    1.57 in
    Package Height:
    0.63 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-213 precision measuring tool

    Insize 7382-213 – 3-Wires, .0433IN/1.100MM

    Insize

    $418.00
    Insize 7382-213 – 3-Wires, .0433IN/
    7382-213
    SKU:
    7382-213
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-213
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640362019
    Package Weight:
    0.04 lb
    Package Length:
    1.57 in
    Package Width:
    1.57 in
    Package Height:
    0.59 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-214 precision measuring tool

    Insize 7382-214 – 3-Wires, .0531IN/1.350MM

    Insize

    $418.00
    Insize 7382-214 – 3-Wires, .0531IN/
    7382-214
    SKU:
    7382-214
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-214
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640362026
    Package Weight:
    0.04 lb
    Package Length:
    1.73 in
    Package Width:
    1.57 in
    Package Height:
    0.63 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-215 precision measuring tool

    Insize 7382-215 – 3-Wires, .0650IN/1.650MM

    Insize

    $418.00
    Insize 7382-215 – 3-Wires, .0650IN/
    7382-215
    SKU:
    7382-215
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-215
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640362033
    Package Weight:
    0.04 lb
    Package Length:
    1.57 in
    Package Width:
    1.57 in
    Package Height:
    0.59 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-216 precision measuring tool

    Insize 7382-216 – 3-Wires, .0807IN/2.050MM

    Insize

    $418.00
    Insize 7382-216 – 3-Wires, .0807IN/
    7382-216
    SKU:
    7382-216
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.03 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-216
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640362040
    Package Weight:
    0.03 lb
    Package Length:
    1.69 in
    Package Width:
    1.57 in
    Package Height:
    0.79 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-217 precision measuring tool

    Insize 7382-217 – 3-Wires, .1004IN/2.550MM

    Insize

    $418.00
    Insize 7382-217 – 3-Wires, .1004IN/
    7382-217
    SKU:
    7382-217
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-217
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640362057
    Package Weight:
    0.04 lb
    Package Length:
    1.57 in
    Package Width:
    1.57 in
    Package Height:
    0.59 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-218 precision measuring tool

    Insize 7382-218 – 3-Wires, .1260IN3.200MM

    Insize

    $418.00
    Insize 7382-218 – 3-Wires, .1260IN3
    7382-218
    SKU:
    7382-218
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-218
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640362064
    Package Weight:
    0.04 lb
    Package Length:
    1.57 in
    Package Width:
    1.57 in
    Package Height:
    0.59 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-22 precision measuring tool

    Insize 7382-22 – 3-Wires, .0077IN/0.195MM

    Insize

    $418.00
    Insize 7382-22 – 3-Wires, .0077IN/0
    7382-22
    SKU:
    7382-22
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.03 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-22
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640361906
    Package Weight:
    0.03 lb
    Package Length:
    1.65 in
    Package Width:
    1.57 in
    Package Height:
    0.59 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-23 precision measuring tool

    Insize 7382-23 – 3-Wires, .0087IN/0.220MM

    Insize

    $418.00
    Insize 7382-23 – 3-Wires, .0087IN/0
    7382-23
    SKU:
    7382-23
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.03 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-23
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640361913
    Package Weight:
    0.03 lb
    Package Length:
    1.65 in
    Package Width:
    1.57 in
    Package Height:
    0.59 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-24 precision measuring tool

    Insize 7382-24 – 3-Wires, .0098IN/0.250MM

    Insize

    $418.00
    Insize 7382-24 – 3-Wires, .0098IN/0
    7382-24
    SKU:
    7382-24
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.03 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-24
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640361920
    Package Weight:
    0.03 lb
    Package Length:
    1.65 in
    Package Width:
    1.57 in
    Package Height:
    0.59 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-25 precision measuring tool

    Insize 7382-25 – 3-Wires, .0114IN/0.290MM

    Insize

    $418.00
    Insize 7382-25 – 3-Wires, .0114IN/0
    7382-25
    SKU:
    7382-25
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.03 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-25
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640361937
    Package Weight:
    0.03 lb
    Package Length:
    1.65 in
    Package Width:
    1.57 in
    Package Height:
    0.59 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-26 precision measuring tool

    Insize 7382-26 – 3-Wires, .0132IN/0.335MM

    Insize

    $418.00
    Insize 7382-26 – 3-Wires, .0132IN/0
    7382-26
    SKU:
    7382-26
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.03 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-26
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640361944
    Package Weight:
    0.03 lb
    Package Length:
    1.65 in
    Package Width:
    1.57 in
    Package Height:
    0.59 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-27 precision measuring tool

    Insize 7382-27 – 3-Wires, .0154IN/0.390MM

    Insize

    $418.00
    Insize 7382-27 – 3-Wires, .0154IN/0
    7382-27
    SKU:
    7382-27
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.03 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-27
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640361951
    Package Weight:
    0.03 lb
    Package Length:
    1.65 in
    Package Width:
    1.57 in
    Package Height:
    0.59 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-28 precision measuring tool

    Insize 7382-28 – 3-Wires, .0179IN/0.455MM

    Insize

    $418.00
    Insize 7382-28 – 3-Wires, .0179IN/0
    7382-28
    SKU:
    7382-28
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.03 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-28
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640361968
    Package Weight:
    0.03 lb
    Package Length:
    1.65 in
    Package Width:
    1.57 in
    Package Height:
    0.59 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-29 precision measuring tool

    Insize 7382-29 – 3-Wires, .0209IN/0.530MM

    Insize

    $418.00
    Insize 7382-29 – 3-Wires, .0209IN/0
    7382-29
    SKU:
    7382-29
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.03 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-29
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640361975
    Package Weight:
    0.03 lb
    Package Length:
    1.65 in
    Package Width:
    1.57 in
    Package Height:
    0.59 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $418.00
  • Insize 7382-2S precision measuring tool

    Insize 7382-2S – 3-Wire Set, 18 Sizes, 18 pairs/set

    Insize

    $5,278.00
    Insize 7382-2S – 3-Wire Set, 18 Siz
    7382-2S
    SKU:
    7382-2S
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.07 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    7382-2S
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640362071
    Package Weight:
    1.07 lb
    Package Length:
    7.87 in
    Package Width:
    5.12 in
    Package Height:
    1.5 in
    Feature 1:
    Used with standard outside micrometers with spindle .256'DIA to measure pitch diameter of screw threads.
    Feature 2:
    Diameter accuracy: ±20μin. Cylindricity: 39μin.
    Feature 3:
    Cylindricity: 1um. Hardness: HRC60.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    Feature 5:
    Supplied with manufacturer inspection certificate.
    $5,278.00
  • Insize ISQ-TE100 precision measuring tool

    Insize ISQ-TE100 – External Thread Measuring Device, 0-3.937IN

    Insize

    $22,250.00
    Insize ISQ-TE100 – External Thread
    ISQ-TE100
    SKU:
    ISQ-TE100
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    28.66 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-TE100
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    B
    EAN:
    6928640371103
    Package Weight:
    28.66 lb
    Package Length:
    16.93 in
    Package Width:
    17.13 in
    Package Height:
    9.84 in
    Feature 1:
    Resolution .00001'. Accuracy .00008'
    Feature 2:
    Repeatability .00002'
    Feature 3:
    Quickly measure major, pitch and minor diameters of of external thread.
    Feature 4:
    Suitable for metric, inch, Whitworth, NPT and BSPT.
    $22,250.00
  • Insize ISQ-TE100-A precision measuring tool

    Insize ISQ-TE100-A – Measuring Pins, 21 Pairs

    Insize

    $5,568.00
    Insize ISQ-TE100-A – Measuring Pins
    ISQ-TE100-A
    SKU:
    ISQ-TE100-A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.32 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-TE100-A
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    B
    EAN:
    6928640371110
    Package Weight:
    1.32 lb
    Package Length:
    13.58 in
    Package Width:
    7.17 in
    Package Height:
    1.38 in
    Feature 1:
    To measure pitch diameter of external thread.
    Feature 2:
    Each size is supplied in pair.
    Feature 3:
    Hardness: 60±2HRC.
    Feature 4:
    Optional accessory for ISQ-TE100
    $5,568.00
  • Insize ISQ-TE100-B precision measuring tool

    Insize ISQ-TE100-B – Measuring Prisms, 4 Pairs

    Insize

    $6,019.00
    Insize ISQ-TE100-B – Measuring Pris
    ISQ-TE100-B
    SKU:
    ISQ-TE100-B
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.77 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-TE100-B
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    B
    EAN:
    6928640371127
    Package Weight:
    0.77 lb
    Package Length:
    6.1 in
    Package Width:
    3.62 in
    Package Height:
    1.57 in
    Feature 1:
    To measure minor diameter of external thread.
    Feature 2:
    Each size is supplied in pair.
    Feature 3:
    Optional accessory for ISQ-TE100
    $6,019.00