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JBO Thread Plug Gauge (NoGo) - Metric Coarse - Right Hand - 6H - M45 x 4.5

SKU:JBO-510395

The JBO Thread Plug Gauge (NoGo) is a precision inspection tool designed to verify metric coarse threaded holes. It is sized for M45 x 4.5, right-hand threads, and uses the 6H tolerance class to ... Read more ↓
Thread FormMetric
SizeM45
Pitch4.5
Gauge TypePlug Gauge (NoGo)
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£108.33
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

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Description

The JBO Thread Plug Gauge (NoGo) is a precision inspection tool designed to verify metric coarse threaded holes. It is sized for M45 x 4.5, right-hand threads, and uses the 6H tolerance class to ensure correct fit and reliable performance in quality-critical applications. This gauge is ideal for engineers, machinists, QA teams, and assembly personnel who need confident, fast checks during manufacturing and inspection processes.

  • Accurate NoGo verification for M45 x 4.5 metric coarse threads: Quick, pass/fail checks that align with the 6H tolerance, helping you confirm holes accept the correct plug size and reject out-of-spec work.
  • Hardened steel construction for long service life: Built to withstand demanding shop environments, delivering durable, repeatable measurements over time.
  • Ergonomic, user-friendly design for fast inspections: Knurled grip and straightforward handling enable secure use and consistent results across multiple checks.

Using this gauge streamlines threaded-hole inspections, reduces rework, and supports consistent, reliable thread quality across parts and batches. Its combination of precise sizing and rugged construction helps you meet standards with confidence, improving workflow efficiency and overall production performance.

Part Numbers

Protool Part Number
JBO-510395
Brand
JBO
Category
Gauge
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Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Delivery

Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.

Returns

14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.

Technical Support

Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Trade Accounts

Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.

What time are Protool open?

We are open Monday to Friday between 8:30am and 5pm.

Do you offer Free Next Day delivery?

Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.

We also offer the following:

  • Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
  • DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
  • Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
  • DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.

For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.

*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: JBO Thread Plug Gauges (NoGo) - Metric Coarse

View full collection →

You are viewing JBO-510395. Click any other SKU to view its full details.

Product SKUSizePitchPriceStock Order
JBO-510383 M424.5£99.91 5 days
JBO-510395 ViewingM454.5£108.33 5 days
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JBO-510444 M525£124.99 5 days
JBO-510457 M565.5£137.06 5 days
JBO-510482 M605.5£155.70 5 days
JBO-510492 M646£171.05 5 days
JBO-513505 M686£180.92 5 days
JBO-514600 M424.5£126.10 5 days
JBO-516961 M454.5£134.87 5 days
JBO-510409 M485£148.02 5 days
JBO-517178 M525£159.00 5 days

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