Please log in here to access all benefits, including promotional discounts and faster checkouts.
Asimeto Ring Thread Gauge (NoGo) - Metric - Right Hand - 6g - M25 x 1
| Thread Form | Metric |
| Size | M25 |
| Pitch | 1 |
| Gauge Type | Ring Gauge (NoGo) |
Learn more about Klarna
Compatible certification
The ones our customers buy most.
Description
The Asimeto Ring Thread Gauge (NoGo) is a precision metric tool designed to verify external thread sizes with strict 6g tolerance. Tailored for machinists, quality control professionals, and fastener manufacturers, it delivers a clear go/no-go assessment of pitch diameter to ensure reliable, safe connections.
- NoGo designation: Clear go/no-go indication to determine if the thread pitch diameter exceeds the maximum allowable limit.
- 6g tolerance class: Adheres to the 6g standard for precise size control in metric threads.
- Thread size: Metric M25 x 1 with right-hand thread geometry.
- Right-hand configuration: Optimized for common metric threading applications and standard assembly processes.
- Series: 686 Series engineered for dependable precision and durability.
- Material and durability: Crafted from high-quality materials designed to withstand routine use in workshop environments.
Using this gauge, you can quickly verify that a fastener’s pitch diameter fits within spec, preventing the use of oversized or undersized parts. This reduces rework, scrap, and binding issues during assembly. The gauge supports efficient quality control workflows, delivering reliable pass/fail decisions on inspection and production lines. With its robust construction and accurate tolerances, the Asimeto 686 Series gauge remains a trustworthy tool for maintaining consistent thread integrity in critical applications.
Part Numbers
- Protool Part Number
- 686-25-3
- 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 686-25-3. 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 Viewing | 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 | 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.
