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
-
Insize 4131-102 – American Standard Thread Plug Gage, Go and No Go, 10-32UNF
Insize
$126.00Insize 4131-102 – American Standard4131-102- SKU:
- 4131-102
- 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:
- 4131-102
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358937
- Package Weight:
- 0.04 lb
- Package Length:
- 3.43 in
- Package Width:
- 0.94 in
- Package Height:
- 0.94 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$126.00 -
Insize 4131-1A1 – American Standard Thread Plug Gage, Go and No Go, 1/2-13UNC
Insize
$136.00Insize 4131-1A1 – American Standard4131-1A1- SKU:
- 4131-1A1
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.14 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-1A1
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640359019
- Package Weight:
- 0.14 lb
- Package Length:
- 4.45 in
- Package Width:
- 0.98 in
- Package Height:
- 0.98 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$136.00 -
Insize 4131-1A2 – American Standard Thread Plug Gage, Go and No Go, 1/2-20UNF
Insize
$131.00Insize 4131-1A2 – American Standard4131-1A2- SKU:
- 4131-1A2
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.13 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-1A2
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640359026
- Package Weight:
- 0.13 lb
- Package Length:
- 4.09 in
- Package Width:
- 0.94 in
- Package Height:
- 0.94 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$131.00 -
Insize 4131-1B1 – American Standard Thread Plug Gage, Go and No Go, 1/4-20UNC
Insize
$113.00Insize 4131-1B1 – American Standard4131-1B1- SKU:
- 4131-1B1
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.05 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-1B1
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358944
- Package Weight:
- 0.05 lb
- Package Length:
- 3.43 in
- Package Width:
- 0.94 in
- Package Height:
- 0.94 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$113.00 -
Insize 4131-1B2 – American Standard Thread Plug Gage, Go and No Go, 1/4-28UNF
Insize
$119.00Insize 4131-1B2 – American Standard4131-1B2- SKU:
- 4131-1B2
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.05 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-1B2
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358951
- Package Weight:
- 0.05 lb
- Package Length:
- 3.43 in
- Package Width:
- 0.94 in
- Package Height:
- 0.94 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$119.00 -
Insize 4131-3B1 – American Standard Thread Plug Gage, Go and No Go, 3/4-10UNC
Insize
$183.00Insize 4131-3B1 – American Standard4131-3B1- SKU:
- 4131-3B1
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.42 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-3B1
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640359064
- Package Weight:
- 0.42 lb
- Package Length:
- 5.71 in
- Package Width:
- 1.57 in
- Package Height:
- 1.57 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$183.00 -
Insize 4131-3B2 – American Standard Thread Plug Gage, Go and No Go, 3/4-16UNF
Insize
$152.00Insize 4131-3B2 – American Standard4131-3B2- SKU:
- 4131-3B2
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.38 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-3B2
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640359071
- Package Weight:
- 0.38 lb
- Package Length:
- 5.12 in
- Package Width:
- 1.57 in
- Package Height:
- 1.57 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$152.00 -
Insize 4131-3C1 – American Standard Thread Plug Gage, Go and No Go, 3/8-16UNC
Insize
$126.00Insize 4131-3C1 – American Standard4131-3C1- SKU:
- 4131-3C1
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.08 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-3C1
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358982
- Package Weight:
- 0.08 lb
- Package Length:
- 3.78 in
- Package Width:
- 0.94 in
- Package Height:
- 0.94 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$126.00 -
Insize 4131-3C2 – American Standard Thread Plug Gage, Go and No Go, 3/8-24UNF
Insize
$126.00Insize 4131-3C2 – American Standard4131-3C2- SKU:
- 4131-3C2
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.08 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-3C2
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358999
- Package Weight:
- 0.08 lb
- Package Length:
- 3.62 in
- Package Width:
- 0.94 in
- Package Height:
- 0.94 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$126.00 -
Insize 4131-41 – American Standard Thread Plug Gage, Go and No Go, 4-40UNC
Insize
$126.00Insize 4131-41 – American Standard4131-41- SKU:
- 4131-41
- 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:
- 4131-41
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358906
- Package Weight:
- 0.03 lb
- Package Length:
- 3.39 in
- Package Width:
- 0.94 in
- Package Height:
- 0.94 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$126.00 -
Insize 4131-5C1 – American Standard Thread Plug Gage, Go and No Go, 5/8-11UNC
Insize
$181.00Insize 4131-5C1 – American Standard4131-5C1- SKU:
- 4131-5C1
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.24 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-5C1
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640359040
- Package Weight:
- 0.24 lb
- Package Length:
- 5.12 in
- Package Width:
- 0.98 in
- Package Height:
- 0.98 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$181.00 -
Insize 4131-5C2 – American Standard Thread Plug Gage, Go and No Go, 5/8-18UNF
Insize
$137.00Insize 4131-5C2 – American Standard4131-5C2- SKU:
- 4131-5C2
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.21 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-5C2
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640359057
- Package Weight:
- 0.21 lb
- Package Length:
- 4.53 in
- Package Width:
- 0.94 in
- Package Height:
- 0.94 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$137.00 -
Insize 4131-5D1 – American Standard Thread Plug Gage, Go and No Go, 5/16-18UNC
Insize
$113.00Insize 4131-5D1 – American Standard4131-5D1- SKU:
- 4131-5D1
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.07 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-5D1
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358968
- Package Weight:
- 0.07 lb
- Package Length:
- 3.62 in
- Package Width:
- 0.94 in
- Package Height:
- 0.94 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$113.00 -
Insize 4131-5D2 – American Standard Thread Plug Gage, Go and No Go, 5/16-24UNF
Insize
$113.00Insize 4131-5D2 – American Standard4131-5D2- SKU:
- 4131-5D2
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.07 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-5D2
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358975
- Package Weight:
- 0.07 lb
- Package Length:
- 3.78 in
- Package Width:
- 0.94 in
- Package Height:
- 0.94 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$113.00 -
Insize 4131-61 – American Standard Thread Plug Gage, Go and No Go, 6-32UNC
Insize
$115.00Insize 4131-61 – American Standard4131-61- SKU:
- 4131-61
- 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:
- 4131-61
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358913
- Package Weight:
- 0.04 lb
- Package Length:
- 3.43 in
- Package Width:
- 0.94 in
- Package Height:
- 0.94 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$115.00 -
Insize 4131-7D2 – American Standard Thread Plug Gage, Go and No Go, 7/16-20UNF
Insize
$125.00Insize 4131-7D2 – American Standard4131-7D2- SKU:
- 4131-7D2
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.11 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-7D2
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640359002
- Package Weight:
- 0.11 lb
- Package Length:
- 3.94 in
- Package Width:
- 0.94 in
- Package Height:
- 0.94 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$125.00 -
Insize 4131-81 – American Standard Thread Plug Gage, Go and No Go, 8-32UNC
Insize
$115.00Insize 4131-81 – American Standard4131-81- SKU:
- 4131-81
- 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:
- 4131-81
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358920
- Package Weight:
- 0.04 lb
- Package Length:
- 3.39 in
- Package Width:
- 0.87 in
- Package Height:
- 0.87 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$115.00 -
Insize 4131-9D2 – American Standard Thread Plug Gage, Go and No Go, 9/16-18UNF
Insize
$131.00Insize 4131-9D2 – American Standard4131-9D2- SKU:
- 4131-9D2
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.20 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4131-9D2
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640359033
- Package Weight:
- 0.2 lb
- Package Length:
- 4.53 in
- Package Width:
- 0.94 in
- Package Height:
- 0.94 in
- Feature 1:
- Class 2B.
- Feature 2:
- Standard ANSI/ASME B1.2
- Feature 3:
- Supplied with Go and No-Go gages together
- Feature 4:
- Supplied with manufacturer inspection certificate.
$131.00 -
Insize 4139-14Q – Fine Thread Plug Gage, Go and No Go, 6H, ISO 1502, M14x1.25
Insize
$75.20Insize 4139-14Q – Fine Thread Plug4139-14Q- SKU:
- 4139-14Q
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.13 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4139-14Q
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640340574
- Package Weight:
- 0.13 lb
- Package Length:
- 4.13 in
- Package Width:
- 0.87 in
- Package Height:
- 0.87 in
- Feature 1:
- Supplied with Go and No-Go gages together.
- Feature 2:
- Standard ISO1502
- Feature 3:
- Supplied with manufacturer inspection certificate.
$75.20 -
Insize 4634-112 – NPT Thread Ring Gage, 1x11.5NPT
Insize
$1,318.83Insize 4634-112 – NPT Thread Ring G4634-112- SKU:
- 4634-112
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.66 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 4634-112
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640347009
- Package Weight:
- 0.66 lb
- Package Length:
- 3.86 in
- Package Width:
- 4.02 in
- Package Height:
- 1.77 in
- Feature 1:
- American tapered pipe thread for threads with sealant
- Feature 2:
- Standard ANSI/ASME B1.20.1
- Feature 3:
- Taper 1:16
- Feature 4:
- Material: OHNS (Oil Hardened Non-Shrining Steel)
- Feature 5:
- Stable dimension and wear resistance
- Feature 6:
- Hardness HRC60-62
$1,318.83
