Please log in here to access all benefits, including promotional discounts and faster checkouts.

Asimeto Ring Thread Gauge (NoGo) - Metric - Right Hand - 6g - M30 x 1.5

SKU:686-30-5

The Asimeto Ring Thread Gauge (NoGo) is a metric, right-hand gauge designed for precise thread inspection and quality control. Specifically sized for M30 x 1.5 and part of the 686 Series, it helps... Read more ↓
Thread FormMetric
SizeM30
Pitch1.5
Gauge TypeRing Gauge (NoGo)
View all specifications ↓
£81.41
Prices shown ex. VAT
4 weeks estimated lead time — subject to availability
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Compatible certification

The ones our customers buy most.

Description

The Asimeto Ring Thread Gauge (NoGo) is a metric, right-hand gauge designed for precise thread inspection and quality control. Specifically sized for M30 x 1.5 and part of the 686 Series, it helps ensure only correctly sized fasteners pass through for reliable connections.

  • Thread size: M30 x 1.5 (Metric, right-hand)
  • Tolerance class: 6g
  • NOGO designation: A NoGo ring gauge confirms the thread pitch diameter is not oversized; if a fastener fails to pass through the NoGo gauge, the pitch diameter exceeds the maximum acceptable limit.
  • Series: 686 Series
  • Material and durability: Crafted from high-quality materials for durability and long-lasting performance.
  • Design features: Knurled outer edge for secure grip during measurement
  • Visual datum marker: Red indicator dot aids quick orientation and seating

Using this gauge provides accurate pass/fail assessment for M30 x 1.5 threads, helping prevent oversize threads from being installed and reducing misfits and rework. The NoGo check enforces the maximum material condition, supporting consistent quality across manufacturing, automotive, and maintenance workflows. Built for frequent shop-floor use, the 686 Series gauge delivers dependable accuracy over years of service, making it a trusted tool for machinists, quality inspectors, and assembly teams who demand reliable measurements and smoother first-fit assemblies.

Part Numbers

Protool Part Number
686-30-5
Brand
Asimeto
Category
Gauge
No downloads are attached to this product yet.
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: Asimeto Ring Gauges - NOGO - Metric Fine 6g - 686 Series

View full collection →

You are viewing 686-30-5. Click any other SKU to view its full details.

Product SKUSizePitchPriceStock Order
686-02-0 M20.35£59.49 In Stock
686-02-8 M2.20.35£69.66 In Stock
686-02-9 M2.50.35£69.66 In Stock
686-03-0 M30.35£55.94 In Stock
686-03-9 M3.50.35£61.43 In Stock
686-04-0 M40.35£55.94 In Stock
686-04-9 M4.50.35£61.43 In Stock
686-05-0 M50.35£55.94 In Stock
686-06-0 M60.35£55.94 In Stock
686-04-1 M40.5£46.58 In Stock
686-05-1 M50.5£46.58 In Stock
686-06-1 M60.5£46.58 In Stock
686-08-1 M80.5£46.58 In Stock
686-10-1 M100.5£53.24 In Stock
686-12-1 M120.5£53.24 In Stock
686-06-2 M60.75£40.32 In Stock
686-07-2 M70.75£36.41 In Stock
686-08-2 M80.75£45.77 In Stock
686-10-2 M100.75£45.77 In Stock
686-12-2 M120.75£51.26 In Stock
686-08-3 M81£41.09 In Stock
686-09-3 M91£41.09 4 weeks
686-10-3 M101£41.09 4 weeks
686-11-3 M111£41.09 In Stock
686-12-3 M121£41.09 In Stock
686-14-3 M141£52.83 In Stock
686-16-3 M161£58.68 4 weeks
686-18-3 M181£64.17 4 weeks
686-20-3 M201£64.17 4 weeks
686-21-3 M211£71.60 In Stock
686-22-3 M221£69.66 In Stock
686-23-3 M231£82.17 In Stock
686-24-3 M241£77.09 In Stock
686-25-3 M251£87.66 4 weeks
686-26-3 M261£87.66 4 weeks
686-27-3 M271£79.07 In Stock
686-28-3 M281£87.66 In Stock
686-30-3 M301£89.24 4 weeks
686-32-3 M321£99.00 In Stock
686-33-3 M331£100.58 4 weeks
686-34-3 M341£100.58 In Stock
686-35-3 M351£100.58 In Stock
686-36-3 M361£100.58 In Stock
686-38-3 M381£112.68 4 weeks
686-39-3 M391£121.32 4 weeks
686-40-3 M401£107.60 In Stock
686-42-3 M421£127.17 4 weeks
686-45-3 M451£154.58 4 weeks
686-48-3 M481£148.68 4 weeks
686-50-3 M501£146.75 4 weeks
686-52-3 M521£156.92 4 weeks
686-55-3 M551£187.83 4 weeks
686-56-3 M561£178.07 4 weeks
686-58-3 M581£178.07 4 weeks
686-10-4 M101.25£41.09 In Stock
686-12-4 M121.25£41.09 In Stock
686-14-4 M141.25£50.49 In Stock
686-12-5 M121.5£41.09 In Stock
686-14-5 M141.5£51.66 In Stock
686-16-5 M161.5£55.94 In Stock
686-18-5 M181.5£52.07 In Stock
686-20-5 M201.5£63.41 4 weeks
686-22-5 M221.5£67.68 In Stock
686-24-5 M241.5£61.07 In Stock
686-25-5 M251.5£67.68 In Stock
686-26-5 M261.5£67.68 4 weeks
686-27-5 M271.5£67.68 In Stock
686-28-5 M281.5£84.51 In Stock
686-30-5 ViewingM301.5£81.41 4 weeks
686-32-5 M321.5£90.41 In Stock
686-33-5 M331.5£91.94 4 weeks
686-34-5 M341.5£95.85 In Stock
686-35-5 M351.5£110.34 4 weeks
686-36-5 M361.5£94.32 In Stock
686-38-5 M381.5£104.49 In Stock
686-40-5 M401.5£120.15 4 weeks
686-42-5 M421.5£136.58 In Stock
686-45-5 M451.5£123.26 4 weeks
686-48-5 M481.5£136.58 4 weeks
686-50-5 M501.5£133.43 In Stock
686-52-5 M521.5£144.41 4 weeks
686-55-5 M551.5£143.24 In Stock
686-56-5 M561.5£143.24 In Stock
686-58-5 M601.5£143.24 In Stock
686-60-5 M601.5£175.32 In Stock
686-18-6 M182£60.66 In Stock
686-20-6 M202£60.66 In Stock
686-22-6 M222£67.32 In Stock
686-24-6 M242£64.94 In Stock
686-26-6 M262£67.68 In Stock
686-27-6 M272£67.68 In Stock
686-28-6 M282£67.68 In Stock
686-30-6 M302£82.17 In Stock
686-32-6 M322£82.17 In Stock
686-33-6 M332£84.15 In Stock
686-34-6 M342£84.15 In Stock
686-35-6 M352£94.32 In Stock
686-36-6 M362£94.32 In Stock
686-38-6 M382£94.32 4 weeks
686-39-6 M392£84.92 In Stock
686-40-6 M402£84.92 In Stock
686-42-6 M422£129.92 In Stock
686-45-6 M452£117.00 In Stock
686-48-6 M482£146.75 4 weeks
686-50-6 M502£132.26 4 weeks
686-52-6 M522£129.92 In Stock
686-55-6 M552£140.85 4 weeks
686-56-6 M562£129.15 4 weeks
686-58-6 M582£129.15 In Stock
686-60-6 M602£145.17 4 weeks
686-30-7 M303£90.00 In Stock
686-33-7 M333£91.94 4 weeks
686-36-7 M363£87.26 In Stock
686-39-7 M393£96.66 In Stock
686-40-7 M403£88.83 In Stock
686-42-7 M423£122.09 In Stock
686-45-7 M453£135.41 4 weeks
686-48-7 M483£135.41 4 weeks
686-50-7 M503£122.09 In Stock
686-52-7 M523£133.07 4 weeks
686-55-7 M553£149.49 4 weeks
686-56-7 M563£142.07 4 weeks
686-58-7 M583£160.83 4 weeks
686-60-7 M603£165.51 4 weeks

Other sizes in this range

with tools we think you'll like
All 124 →