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Asimeto Ring Thread Gauge (NoGo) - Metric - Right Hand - 6g - M50 x 2

SKU:686-50-6

The Asimeto Ring Thread Gauge (NoGo) is a precision tool designed for quality control and fastener validation, specifically for metric threads. Built for machinists, inspectors, and assembly tech... Read more ↓
Thread FormMetric
SizeM50
Pitch2
Gauge TypeRing Gauge (NoGo)
Thread DirectionRight Hand
Tolerance6g
£132.26
Prices shown ex. VAT
4 weeks estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

The Asimeto Ring Thread Gauge (NoGo) is a precision tool designed for quality control and fastener validation, specifically for metric threads. Built for machinists, inspectors, and assembly technicians, it helps confirm that external threads stay within the strict 6g tolerance class.

  • 6g Tolerance Class: Precisely calibrated to meet the 6g standard, ensuring accurate measurement of the thread pitch diameter for metric threads.
  • NoGo Designation: NOGO gauge logic quickly reveals out-of-tolerance condition—if a fastener cannot pass through the ring, the pitch diameter is beyond the maximum allowable limit.
  • 686 Series Construction: Crafted for accuracy and durability with high-quality materials, delivering reliable performance across repeated use in shop environments.
  • Metric Size: M50 x 2 with right-hand thread, clearly aligned to common metric fastener specifications.
  • Right-Hand Thread: Specifically configured for right-handed fasteners, ensuring correct fitment checks during assembly and inspection.
  • Ergonomic Design: Knurled outer edge provides secure grip and smooth handling during gauging tasks, even with work gloves.

This gauge helps you verify that only properly sized fasteners are used, reducing assembly errors and enhancing connection safety. It supports efficient quality control, minimizes rework, and provides a repeatable standard for consistent fastener validation in manufacturing, automotive, and mechanical settings.

Thread Form Metric
Size M50
Pitch 2
Gauge Type Ring Gauge (NoGo)
Thread Direction Right Hand
Tolerance 6g

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.

★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
Bill
★★★★★
first place we look
honest about stock and prices are competitive.
Phil
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
Graham
★★★★★
Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Jeremy

Full Range: Asimeto Ring Gauges - NOGO - Metric Fine 6g - 686 Series

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You are viewing 686-50-6. 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 M301.5£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 ViewingM502£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

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