Thread Gages & Thread Measurement
Insize Thread Gages & Thread Measurement
Authorized Insize distributor | Ships direct from Insize | Quote reply same dayInsize 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… | Choose | Example |
|---|---|---|
| Check an external thread | GO ring plus the matching NO GO ring | 4120-36 |
| Check an internal thread | Thread plug gage | 4130-36 |
| Measure pitch diameter with a micrometer | 3-wires sized to the pitch | 7382-24 |
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 QuoteSend thread size, pitch, class and GO / NO GO and the quantity — we reply the same day. (210) 494-1997 · sales@ldewitt.net
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Insize 6251-S4 – Standard Pitch Block, Taper 1:6, 4 TPI
Insize
$1,694.00Insize 6251-S4 – Standard Pitch Blo6251-S4- SKU:
- 6251-S4
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.88 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6251-S4
- Product Family:
- Bore and Inside Measurement
- Supplier Category Code:
- A
- EAN:
- 6928640383618
- Package Weight:
- 0.88 lb
- Package Length:
- 6.3 in
- Package Width:
- 3.66 in
- Package Height:
- 1.26 in
- Feature 1:
- Threads per inch 4
- Feature 2:
- Set zero of internal and external thread height measuring instruments (code 2232, 2233)
$1,694.00 -
Insize 6251-S5 – Standard Pitch Block, Taper 1:16, 5 TPI
Insize
$1,694.00Insize 6251-S5 – Standard Pitch Blo6251-S5- SKU:
- 6251-S5
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.88 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6251-S5
- Product Family:
- Bore and Inside Measurement
- Supplier Category Code:
- A
- EAN:
- 6928640383601
- Package Weight:
- 0.88 lb
- Package Length:
- 6.3 in
- Package Width:
- 3.66 in
- Package Height:
- 1.26 in
- Feature 1:
- Threads per inch 5
- Feature 2:
- Set zero of internal and external thread height measuring instruments (code 2232, 2233)
$1,694.00 -
Insize 6251-S8 – Standard Pitch Block, Taper 1:16, 8, 10 TPI
Insize
$1,694.00Insize 6251-S8 – Standard Pitch Blo6251-S8- SKU:
- 6251-S8
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.88 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6251-S8
- Product Family:
- Bore and Inside Measurement
- Supplier Category Code:
- A
- EAN:
- 6928640383526
- Package Weight:
- 0.88 lb
- Package Length:
- 6.3 in
- Package Width:
- 3.66 in
- Package Height:
- 1.26 in
- Feature 1:
- Threads per inch 8, 10
- Feature 2:
- Set zero of internal and external thread height measuring instruments (code 2232, 2233)
$1,694.00 -
Insize 6252-B10 – Ball Point (Round Thread, Line Pipe), 10 Threads Per Inch
Insize
$115.00Insize 6252-B10 – Ball Point (Round6252-B10- SKU:
- 6252-B10
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.44 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6252-B10
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640383878
- Package Weight:
- 0.44 lb
- Package Length:
- 1.85 in
- Package Width:
- 1.85 in
- Package Height:
- 0.75 in
- Feature 1:
- Supplied in pair
- Feature 2:
- For taper measuring instruments (code 2230) and pitch measuring instruments (code 2234, 2235)
$115.00 -
Insize 6252-B115 – Ball Point (Line Pipe), 11.5 Threads Per Inch
Insize
$115.00Insize 6252-B115 – Ball Point (Line6252-B115- SKU:
- 6252-B115
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.44 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6252-B115
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640383885
- Package Weight:
- 0.44 lb
- Package Length:
- 1.85 in
- Package Width:
- 1.85 in
- Package Height:
- 0.75 in
- Feature 1:
- Supplied in pair
- Feature 2:
- For taper measuring instruments (code 2230) and pitch measuring instruments (code 2234, 2235)
$115.00 -
Insize 6252-B14 – Ball Point (Line Pipe), 14 Threads Per Inch
Insize
$115.00Insize 6252-B14 – Ball Point (Line6252-B14- SKU:
- 6252-B14
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.44 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6252-B14
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640383892
- Package Weight:
- 0.44 lb
- Package Length:
- 1.85 in
- Package Width:
- 1.85 in
- Package Height:
- 0.75 in
- Feature 1:
- Supplied in pair
- Feature 2:
- For taper measuring instruments (code 2230) and pitch measuring instruments (code 2234, 2235)
$115.00 -
Insize 6252-B18 – Ball Point (Line Pipe), 18 Threads Per Inch
Insize
$115.00Insize 6252-B18 – Ball Point (Line6252-B18- SKU:
- 6252-B18
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.44 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6252-B18
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640383908
- Package Weight:
- 0.44 lb
- Package Length:
- 1.85 in
- Package Width:
- 1.85 in
- Package Height:
- 0.75 in
- Feature 1:
- Supplied in pair
- Feature 2:
- For taper measuring instruments (code 2230) and pitch measuring instruments (code 2234, 2235)
$115.00 -
Insize 6252-B27 – Ball Point (Line Pipe), 27 Threads Per Inch
Insize
$115.00Insize 6252-B27 – Ball Point (Line6252-B27- SKU:
- 6252-B27
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.44 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6252-B27
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640383915
- Package Weight:
- 0.44 lb
- Package Length:
- 1.85 in
- Package Width:
- 1.85 in
- Package Height:
- 0.75 in
- Feature 1:
- Supplied in pair
- Feature 2:
- For taper measuring instruments (code 2230) and pitch measuring instruments (code 2234, 2235)
$115.00 -
Insize 6252-B5 – Ball Point (Buttress Thread), 5 Threads Per Inch
Insize
$115.00Insize 6252-B5 – Ball Point (Buttre6252-B5- SKU:
- 6252-B5
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.44 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6252-B5
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640383922
- Package Weight:
- 0.44 lb
- Package Length:
- 1.85 in
- Package Width:
- 1.85 in
- Package Height:
- 0.75 in
- Feature 1:
- Supplied in pair
- Feature 2:
- For taper measuring instruments (code 2230) and pitch measuring instruments (code 2234, 2235)
$115.00 -
Insize 6252-B51 – Ball Point (Buttress Thread), 5 Threads Per Inch
Insize
$115.00Insize 6252-B51 – Ball Point (Buttr6252-B51- SKU:
- 6252-B51
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.44 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6252-B51
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640383939
- Package Weight:
- 0.44 lb
- Package Length:
- 1.85 in
- Package Width:
- 1.85 in
- Package Height:
- 0.75 in
- Feature 1:
- Supplied in pair
- Feature 2:
- For taper measuring instruments (code 2230) and pitch measuring instruments (code 2234, 2235)
$115.00 -
Insize 6252-B52 – Ball Point (Extreme Line Thread), 5, 6 Threads Per Inch
Insize
$115.00Insize 6252-B52 – Ball Point (Extre6252-B52- SKU:
- 6252-B52
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.44 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6252-B52
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640384479
- Package Weight:
- 0.44 lb
- Package Length:
- 1.85 in
- Package Width:
- 1.85 in
- Package Height:
- 0.75 in
- Feature 1:
- Supplied in pair
- Feature 2:
- For taper measuring instruments (code 2230) and pitch measuring instruments (code 2234, 2235)
$115.00 -
Insize 6252-B53 – Ball Point (Extreme Line Thread), 5 Threads Per Inch
Insize
$115.00Insize 6252-B53 – Ball Point (Extre6252-B53- SKU:
- 6252-B53
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.44 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6252-B53
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640384486
- Package Weight:
- 0.44 lb
- Package Length:
- 1.85 in
- Package Width:
- 1.85 in
- Package Height:
- 0.75 in
- Feature 1:
- Supplied in pair
- Feature 2:
- For taper measuring instruments (code 2230) and pitch measuring instruments (code 2234, 2235)
$115.00 -
Insize 6252-B6 – Ball Point (Extreme Line Thread), 6 Threads Per Inch
Insize
$115.00Insize 6252-B6 – Ball Point (Extrem6252-B6- SKU:
- 6252-B6
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.44 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6252-B6
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640384493
- Package Weight:
- 0.44 lb
- Package Length:
- 1.85 in
- Package Width:
- 1.85 in
- Package Height:
- 0.75 in
- Feature 1:
- Supplied in pair
- Feature 2:
- For taper measuring instruments (code 2230) and pitch measuring instruments (code 2234, 2235)
$115.00 -
Insize 6252-B8 – Ball Point (Round Thread, Line Pipe), 8 Threads Per Inch
Insize
$115.00Insize 6252-B8 – Ball Point (Round6252-B8- SKU:
- 6252-B8
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.44 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6252-B8
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640383625
- Package Weight:
- 0.44 lb
- Package Length:
- 1.85 in
- Package Width:
- 1.85 in
- Package Height:
- 0.75 in
- Feature 1:
- Supplied in pair
- Feature 2:
- For taper measuring instruments (code 2230) and pitch measuring instruments (code 2234, 2235)
$115.00 -
Insize 7321-T11 – Screw Thread Point, Internal Thread, 64-48TPI/0.4-0.5MM, Pair
Insize
$49.40Insize 7321-T11 – Screw Thread Poin7321-T11- SKU:
- 7321-T11
- 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:
- 7321-T11
- Product Family:
- Bore and Inside Measurement
- Supplier Category Code:
- A
- EAN:
- 6928640348464
- Package Weight:
- 0.04 lb
- Package Length:
- 2.24 in
- Package Width:
- 2.09 in
- Package Height:
- 0.87 in
- Feature 1:
- internal thread (60° thread angle)
- Feature 2:
- SCREW THREAD POINT, 64-48TPI/0.4-0.5mm, pair
- Feature 3:
- For use with Screw Thread Microsmeter Series # 3281
$49.40 -
Insize 7321-T12 – Screw Thread Point, Internal Thread, 44-28TPI/0.6-0.9MM, Pair
Insize
$49.40Insize 7321-T12 – Screw Thread Poin7321-T12- SKU:
- 7321-T12
- 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:
- 7321-T12
- Product Family:
- Bore and Inside Measurement
- Supplier Category Code:
- A
- EAN:
- 6928640348471
- Package Weight:
- 0.04 lb
- Package Length:
- 2.24 in
- Package Width:
- 2.09 in
- Package Height:
- 0.87 in
- Feature 1:
- internal thread (60° thread angle)
- Feature 2:
- SCREW THREAD POINT, 44-28TPI/0.6-0.9mm, pair
- Feature 3:
- For use with Screw Thread Microsmeter Series # 3281
$49.40 -
Insize 7321-T13 – Screw Thread Point, Internal Thread, 24-14TPI/1-1.75MM, Pair
Insize
$49.40Insize 7321-T13 – Screw Thread Poin7321-T13- SKU:
- 7321-T13
- 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:
- 7321-T13
- Product Family:
- Bore and Inside Measurement
- Supplier Category Code:
- A
- EAN:
- 6928640348488
- Package Weight:
- 0.03 lb
- Package Length:
- 2.24 in
- Package Width:
- 2.09 in
- Package Height:
- 0.87 in
- Feature 1:
- internal thread (60° thread angle)
- Feature 2:
- SCREW THREAD POINT, 24-14TPI/1-1.75mm, pair
- Feature 3:
- For use with Screw Thread Microsmeter Series # 3281
$49.40 -
Insize 7321-T14 – Screw Thread Point, Internal Thread, 13-9TPI/2-3MM, Pair
Insize
$49.40Insize 7321-T14 – Screw Thread Poin7321-T14- SKU:
- 7321-T14
- 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:
- 7321-T14
- Product Family:
- Bore and Inside Measurement
- Supplier Category Code:
- A
- EAN:
- 6928640348495
- Package Weight:
- 0.04 lb
- Package Length:
- 2.24 in
- Package Width:
- 2.09 in
- Package Height:
- 0.87 in
- Feature 1:
- internal thread (60° thread angle)
- Feature 2:
- SCREW THREAD POINT, 13-9TPI/2-3mm, pair
- Feature 3:
- For use with Screw Thread Microsmeter Series # 3281
$49.40 -
Insize 7321-T15 – Screw Thread Point, Internal Thread, 8-5TPI/3.5-5MM, Pair
Insize
$49.40Insize 7321-T15 – Screw Thread Poin7321-T15- SKU:
- 7321-T15
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.02 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 7321-T15
- Product Family:
- Bore and Inside Measurement
- Supplier Category Code:
- A
- EAN:
- 6928640348501
- Package Weight:
- 0.02 lb
- Package Length:
- 1.69 in
- Package Width:
- 1.57 in
- Package Height:
- 0.39 in
- Feature 1:
- internal thread (60° thread angle)
- Feature 2:
- SCREW THREAD POINT, 8-5TPI/3.5-5mm, pair
- Feature 3:
- For use with Screw Thread Microsmeter Series # 3281
$49.40 -
Insize 7321-T16 – Screw Thread Point, Internal Thread, 4.5-3.5TPI/5.5-7MM, Pair
Insize
$49.40Insize 7321-T16 – Screw Thread Poin7321-T16- SKU:
- 7321-T16
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.02 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 7321-T16
- Product Family:
- Bore and Inside Measurement
- Supplier Category Code:
- A
- EAN:
- 6928640348518
- Package Weight:
- 0.02 lb
- Package Length:
- 1.69 in
- Package Width:
- 1.57 in
- Package Height:
- 0.59 in
- Feature 1:
- internal thread (60° thread angle)
- Feature 2:
- SCREW THREAD POINT, 4.5-3.5TPI/5.5-7mm, pair
- Feature 3:
- For use with Screw Thread Microsmeter Series # 3281
$49.40
