Please log in here to access all benefits, including promotional discounts and faster checkouts.
Asimeto Ring Thread Gauge (NoGo) - Metric - Right Hand - 6g - M18 x 1.5
| Thread Form | Metric |
| Size | M18 |
| Pitch | 1.5 |
| Gauge Type | Ring Gauge (NoGo) |
Learn more about Klarna
Compatible certification
The ones our customers buy most.
Description
Designed for machinists, quality control professionals, and assembly technicians, the Asimeto Ring Thread Gauge (NoGo) provides a precise, quick check of metric external threads. Specifically sized for right-hand M18 x 1.5 fasteners, it verifies the thread pitch diameter against the 6g tolerance class to ensure proper fit and safe connections.
- Series: 686 Series ring gauges crafted for precision and long-lasting performance.
- Size and standard: Metric M18 x 1.5, right-hand thread, designed to meet 6g tolerance requirements.
- NOGO verification: NoGo designation determines if threads are too large or out of tolerance by blocking passage when out of spec.
- Material and construction: Built with high-quality materials to withstand daily use in workshop environments.
- Grip and usability: Knurled outer edge for secure handling during measurement tasks.
- Visual orientation: Red indicator mark aids quick alignment and consistent measurement checks.
The gauge accelerates quality control by delivering a clear pass/fail signal for the thread pitch diameter, helping you avoid undersized or oversized fasteners in critical assemblies. By ensuring only parts that meet the 6g tolerance pass through, it supports reliable connections in mechanical systems, automotive maintenance, and precision engineering projects. Built for durability, it remains accurate under daily shop conditions, preserving your thread standards over time.
Part Numbers
- Protool Part Number
- 686-18-5
- Brand
- Asimeto
- 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: Asimeto Ring Gauges - NOGO - Metric Fine 6g - 686 Series
View full collection →You are viewing 686-18-5. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| 686-02-0 | M2 | 0.35 | £59.49 | In Stock | |
| 686-02-8 | M2.2 | 0.35 | £69.66 | In Stock | |
| 686-02-9 | M2.5 | 0.35 | £69.66 | In Stock | |
| 686-03-0 | M3 | 0.35 | £55.94 | In Stock | |
| 686-03-9 | M3.5 | 0.35 | £61.43 | In Stock | |
| 686-04-0 | M4 | 0.35 | £55.94 | In Stock | |
| 686-04-9 | M4.5 | 0.35 | £61.43 | In Stock | |
| 686-05-0 | M5 | 0.35 | £55.94 | In Stock | |
| 686-06-0 | M6 | 0.35 | £55.94 | In Stock | |
| 686-04-1 | M4 | 0.5 | £46.58 | In Stock | |
| 686-05-1 | M5 | 0.5 | £46.58 | In Stock | |
| 686-06-1 | M6 | 0.5 | £46.58 | In Stock | |
| 686-08-1 | M8 | 0.5 | £46.58 | In Stock | |
| 686-10-1 | M10 | 0.5 | £53.24 | In Stock | |
| 686-12-1 | M12 | 0.5 | £53.24 | In Stock | |
| 686-06-2 | M6 | 0.75 | £40.32 | In Stock | |
| 686-07-2 | M7 | 0.75 | £36.41 | In Stock | |
| 686-08-2 | M8 | 0.75 | £45.77 | In Stock | |
| 686-10-2 | M10 | 0.75 | £45.77 | In Stock | |
| 686-12-2 | M12 | 0.75 | £51.26 | In Stock | |
| 686-08-3 | M8 | 1 | £41.09 | In Stock | |
| 686-09-3 | M9 | 1 | £41.09 | 4 weeks | |
| 686-10-3 | M10 | 1 | £41.09 | 4 weeks | |
| 686-11-3 | M11 | 1 | £41.09 | In Stock | |
| 686-12-3 | M12 | 1 | £41.09 | In Stock | |
| 686-14-3 | M14 | 1 | £52.83 | In Stock | |
| 686-16-3 | M16 | 1 | £58.68 | 4 weeks | |
| 686-18-3 | M18 | 1 | £64.17 | 4 weeks | |
| 686-20-3 | M20 | 1 | £64.17 | 4 weeks | |
| 686-21-3 | M21 | 1 | £71.60 | In Stock | |
| 686-22-3 | M22 | 1 | £69.66 | In Stock | |
| 686-23-3 | M23 | 1 | £82.17 | In Stock | |
| 686-24-3 | M24 | 1 | £77.09 | In Stock | |
| 686-25-3 | M25 | 1 | £87.66 | 4 weeks | |
| 686-26-3 | M26 | 1 | £87.66 | 4 weeks | |
| 686-27-3 | M27 | 1 | £79.07 | In Stock | |
| 686-28-3 | M28 | 1 | £87.66 | In Stock | |
| 686-30-3 | M30 | 1 | £89.24 | 4 weeks | |
| 686-32-3 | M32 | 1 | £99.00 | In Stock | |
| 686-33-3 | M33 | 1 | £100.58 | 4 weeks | |
| 686-34-3 | M34 | 1 | £100.58 | In Stock | |
| 686-35-3 | M35 | 1 | £100.58 | In Stock | |
| 686-36-3 | M36 | 1 | £100.58 | In Stock | |
| 686-38-3 | M38 | 1 | £112.68 | 4 weeks | |
| 686-39-3 | M39 | 1 | £121.32 | 4 weeks | |
| 686-40-3 | M40 | 1 | £107.60 | In Stock | |
| 686-42-3 | M42 | 1 | £127.17 | 4 weeks | |
| 686-45-3 | M45 | 1 | £154.58 | 4 weeks | |
| 686-48-3 | M48 | 1 | £148.68 | 4 weeks | |
| 686-50-3 | M50 | 1 | £146.75 | 4 weeks | |
| 686-52-3 | M52 | 1 | £156.92 | 4 weeks | |
| 686-55-3 | M55 | 1 | £187.83 | 4 weeks | |
| 686-56-3 | M56 | 1 | £178.07 | 4 weeks | |
| 686-58-3 | M58 | 1 | £178.07 | 4 weeks | |
| 686-10-4 | M10 | 1.25 | £41.09 | In Stock | |
| 686-12-4 | M12 | 1.25 | £41.09 | In Stock | |
| 686-14-4 | M14 | 1.25 | £50.49 | In Stock | |
| 686-12-5 | M12 | 1.5 | £41.09 | In Stock | |
| 686-14-5 | M14 | 1.5 | £51.66 | In Stock | |
| 686-16-5 | M16 | 1.5 | £55.94 | In Stock | |
| 686-18-5 Viewing | M18 | 1.5 | £52.07 | In Stock | |
| 686-20-5 | M20 | 1.5 | £63.41 | 4 weeks | |
| 686-22-5 | M22 | 1.5 | £67.68 | In Stock | |
| 686-24-5 | M24 | 1.5 | £61.07 | In Stock | |
| 686-25-5 | M25 | 1.5 | £67.68 | In Stock | |
| 686-26-5 | M26 | 1.5 | £67.68 | 4 weeks | |
| 686-27-5 | M27 | 1.5 | £67.68 | In Stock | |
| 686-28-5 | M28 | 1.5 | £84.51 | In Stock | |
| 686-30-5 | M30 | 1.5 | £81.41 | 4 weeks | |
| 686-32-5 | M32 | 1.5 | £90.41 | In Stock | |
| 686-33-5 | M33 | 1.5 | £91.94 | 4 weeks | |
| 686-34-5 | M34 | 1.5 | £95.85 | In Stock | |
| 686-35-5 | M35 | 1.5 | £110.34 | 4 weeks | |
| 686-36-5 | M36 | 1.5 | £94.32 | In Stock | |
| 686-38-5 | M38 | 1.5 | £104.49 | In Stock | |
| 686-40-5 | M40 | 1.5 | £120.15 | 4 weeks | |
| 686-42-5 | M42 | 1.5 | £136.58 | In Stock | |
| 686-45-5 | M45 | 1.5 | £123.26 | 4 weeks | |
| 686-48-5 | M48 | 1.5 | £136.58 | 4 weeks | |
| 686-50-5 | M50 | 1.5 | £133.43 | In Stock | |
| 686-52-5 | M52 | 1.5 | £144.41 | 4 weeks | |
| 686-55-5 | M55 | 1.5 | £143.24 | In Stock | |
| 686-56-5 | M56 | 1.5 | £143.24 | In Stock | |
| 686-58-5 | M60 | 1.5 | £143.24 | In Stock | |
| 686-60-5 | M60 | 1.5 | £175.32 | In Stock | |
| 686-18-6 | M18 | 2 | £60.66 | In Stock | |
| 686-20-6 | M20 | 2 | £60.66 | In Stock | |
| 686-22-6 | M22 | 2 | £67.32 | In Stock | |
| 686-24-6 | M24 | 2 | £64.94 | In Stock | |
| 686-26-6 | M26 | 2 | £67.68 | In Stock | |
| 686-27-6 | M27 | 2 | £67.68 | In Stock | |
| 686-28-6 | M28 | 2 | £67.68 | In Stock | |
| 686-30-6 | M30 | 2 | £82.17 | In Stock | |
| 686-32-6 | M32 | 2 | £82.17 | In Stock | |
| 686-33-6 | M33 | 2 | £84.15 | In Stock | |
| 686-34-6 | M34 | 2 | £84.15 | In Stock | |
| 686-35-6 | M35 | 2 | £94.32 | In Stock | |
| 686-36-6 | M36 | 2 | £94.32 | In Stock | |
| 686-38-6 | M38 | 2 | £94.32 | 4 weeks | |
| 686-39-6 | M39 | 2 | £84.92 | In Stock | |
| 686-40-6 | M40 | 2 | £84.92 | In Stock | |
| 686-42-6 | M42 | 2 | £129.92 | In Stock | |
| 686-45-6 | M45 | 2 | £117.00 | In Stock | |
| 686-48-6 | M48 | 2 | £146.75 | 4 weeks | |
| 686-50-6 | M50 | 2 | £132.26 | 4 weeks | |
| 686-52-6 | M52 | 2 | £129.92 | In Stock | |
| 686-55-6 | M55 | 2 | £140.85 | 4 weeks | |
| 686-56-6 | M56 | 2 | £129.15 | 4 weeks | |
| 686-58-6 | M58 | 2 | £129.15 | In Stock | |
| 686-60-6 | M60 | 2 | £145.17 | 4 weeks | |
| 686-30-7 | M30 | 3 | £90.00 | In Stock | |
| 686-33-7 | M33 | 3 | £91.94 | 4 weeks | |
| 686-36-7 | M36 | 3 | £87.26 | In Stock | |
| 686-39-7 | M39 | 3 | £96.66 | In Stock | |
| 686-40-7 | M40 | 3 | £88.83 | In Stock | |
| 686-42-7 | M42 | 3 | £122.09 | In Stock | |
| 686-45-7 | M45 | 3 | £135.41 | 4 weeks | |
| 686-48-7 | M48 | 3 | £135.41 | 4 weeks | |
| 686-50-7 | M50 | 3 | £122.09 | In Stock | |
| 686-52-7 | M52 | 3 | £133.07 | 4 weeks | |
| 686-55-7 | M55 | 3 | £149.49 | 4 weeks | |
| 686-56-7 | M56 | 3 | £142.07 | 4 weeks | |
| 686-58-7 | M58 | 3 | £160.83 | 4 weeks | |
| 686-60-7 | M60 | 3 | £165.51 | 4 weeks |
No products match your filters.
