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JBO Thread Plug Gauge (NoGo) - Electrical Conduit - Right Hand - 7H - M50 x 1.5
| Thread Form | Electrical Conduit |
| Size | M50 |
| Pitch | 1.5 |
| Gauge Type | Plug Gauge (NoGo) |
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The ones our customers buy most.Description
The JBO Thread Plug Gauge (NoGo) for Electrical Conduit is a precision tool designed to verify internal threads in conduit fittings and other threaded components. This right-hand gauge is tailored to the M50 x 1.5 thread size with a 7H tolerance, enabling fast, reliable go/no-go checks during assembly, inspection, or quality control. It’s a practical choice for engineers, machinists, and field technicians who need consistent thread verification without guesswork.
Built for professional use, the gauge features a textured knurled body for a secure grip and repeatable testing in demanding environments. The NoGo portion provides immediate visibility of non-conforming threads, helping prevent mismatches and costly rework across manufacturing, automotive, and aerospace workflows.
- Fast NoGo verification: Delivers quick pass/fail results to identify out-of-tolerance threads, speeding inspections and reducing bottlenecks on the shop floor.
- Right-hand M50 x 1.5 with 7H tolerance: Precisely matched size and tolerance for reliable engagement with electrical conduit fittings and components.
- Durable, non-slip knurled body: Rugged construction with a secure grip that stays comfortable and accurate through daily use, even with gloves.
Using the JBO Thread Plug Gauge helps you streamline threaded-hole inspection, ensure proper fitment, and maintain consistent results across batches. Its exact M50 x 1.5 size and 7H tolerance support dependable, repeatable tests, giving your team confidence in every conduit assembly, repair, or maintenance task.
Part Numbers
- Protool Part Number
- JBO-517140
- Brand
- JBO
- Category
- Gauge
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.
Full Range: JBO Thread Plug Gauges (NoGo) - Electrical Conduit
View full collection →You are viewing JBO-517140. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-517140 Viewing | M50 | 1.5 | £129.40 | 5 days | |
| JBO-514562 | M63 | 1.5 | £163.39 | 5 days | |
| JBO-514563 | M75 | 1.5 | £187.50 | 5 days |
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