Please log in here to access all benefits, including promotional discounts and faster checkouts.
JBO Thread Plug Gauge - Trapezoidal Go-No/Go - Right Hand - 7H - Tr. 28 x 5
| Thread Form | Trapez |
| Size | Tr. 28 |
| Pitch | 5 |
| Gauge Type | Plug Gauge (D/E) |
Learn more about Klarna
Compatible certification
The ones our customers buy most.
Description
The JBO Thread Plug Gauge is a precision inspection tool built for verifying trapezoidal threads in threaded holes. With right-hand orientation and a 7H tolerance in a Tr. 28 x 5 size, it provides quick, reliable go/no-go checks for parts used in manufacturing, automotive, and aerospace applications.
Used in quality control, it quickly confirms whether a hole conforms to Unified thread standards, helping prevent misfits and rework while supporting consistent assembly across lots.
- Go/No-Go Quick Verification: The go/no-go design lets you determine conforming versus non-conforming threads in seconds, speeding up inspections and reducing guesswork.
- Precise Trapezoidal Thread Calibration (7H, Tr. 28 x 5): Engineered to exact trapezoidal thread dimensions, ensuring reliable measurements and compliance with Unified thread standards.
- Durable, Ergonomic Knurled Grip: Knurled construction and robust materials provide secure handling and long life in busy workshop environments, delivering consistent results over many cycles.
This plug gauge streamlines your quality process by delivering fast, repeatable measurements that translate into smoother production flow and fewer threading issues. By ensuring holes meet the trapezoidal thread standard on the first check, you reduce rework, scrap, and downtime, while enabling reliable fastener fitment and longer-lasting assemblies. Rely on consistent, accurate results that support tighter tolerance control and improved overall performance.
Part Numbers
- Protool Part Number
- JBO-512570
- 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 - Trapezoidal Go-No/Go
View full collection →You are viewing JBO-512570. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-515056 | Tr. 8 | 1.5 | £194.08 | 5 days | |
| JBO-512549 | Tr. 10 | 2 | £200.65 | 5 days | |
| JBO-514745 | Tr. 11 | 2 | £200.65 | 5 days | |
| JBO-512554 | Tr. 12 | 3 | £201.76 | 5 days | |
| JBO-512557 | Tr. 14 | 3 | £206.14 | 5 days | |
| JBO-512559 | Tr. 16 | 4 | £211.63 | 5 days | |
| JBO-512561 | Tr. 18 | 4 | £220.40 | 5 days | |
| JBO-512563 | Tr. 20 | 4 | £224.79 | 5 days | |
| JBO-512565 | Tr. 22 | 5 | £236.85 | 5 days | |
| JBO-512566 | Tr. 24 | 5 | £250.01 | 5 days | |
| JBO-512569 | Tr. 26 | 5 | £262.07 | 5 days | |
| JBO-512570 Viewing | Tr. 28 | 5 | £274.12 | 5 days | |
| JBO-512571 | Tr. 30 | 6 | £287.29 | 5 days | |
| JBO-512572 | Tr. 32 | 6 | £293.87 | 5 days |
No products match your filters.
