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JBO Thread Ring Gauge (NoGo) - BSP (G) - Left Hand - Tol. A - 3/4 x 14

SKU:JBO-500103

The JBO Thread Ring Gauge (NoGo) - BSP (G) - Left Hand - Tol. A - 3/4 x 14 is a precision tool designed for accurate external thread verification against BSP (G) standards. Suited for plumbers, f... Read more ↓
Thread FormBSP (G)
Size3/4
Pitch14
Gauge TypeRing Gauge (NoGo)
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£155.70
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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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.
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

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Description

The JBO Thread Ring Gauge (NoGo) - BSP (G) - Left Hand - Tol. A - 3/4 x 14 is a precision tool designed for accurate external thread verification against BSP (G) standards. Suited for plumbers, fluid-handling technicians, engineers, and workshop staff, it enables quick, reliable checks of pipe fittings to ensure proper fit and sealing. Its No-Go design makes non-conforming threads easy to spot, helping prevent leaks and assembly issues in critical systems.

  • No-Go Design for Quick Conformity Checks: The No-Go feature lets you instantly identify threads that are out of tolerance, reducing inspection time and preventing improper fittings from progressing in installation or production.
  • BSP (G) 3/4 x 14 Left-Hand Size with Tol. A: Precisely sized to BSP G external threads and left-hand configurations, with Tol. A tolerance, delivering consistent go/no-go results and dependable sealing performance across fittings.
  • Durable, Precision-Crafted Construction: Meticulous craftsmanship and robust materials provide long-term accuracy, resisting wear and maintaining tight tolerances through repeated use in demanding environments.

This gauge simplifies quality checks and improves consistency for every BSP (G) threaded connection. By delivering fast, reliable go/no-go results, it reduces rework, speeds up assembly, and helps you maintain leak-free seals in plumbing and fluid-handling systems. Whether you’re outfitting a workshop or performing field service, the JBO Thread Ring Gauge provides dependable measurements and builds confidence in every connection.

Part Numbers

Protool Part Number
JBO-500103
Brand
JBO
Category
Gauge
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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: JBO Thread Ring Gauges (NoGo) - BSP (G)

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You are viewing JBO-500103. Click any other SKU to view its full details.

Product SKUSizePitchPriceStock Order
JBO-500066 1/1628£111.84 5 days
JBO-500083 1/828£58.90 5 days
JBO-500077 1/419£70.07 5 days
JBO-500104 3/819£83.11 5 days
JBO-500067 1/214£95.39 5 days
JBO-500112 5/814£115.14 5 days
JBO-500098 3/414£116.23 5 days
JBO-500117 7/814£150.21 5 days
JBO-500043 111£141.45 5 days
JBO-500063 1 1/811£169.96 5 days
JBO-500056 1 1/411£174.35 5 days
JBO-500052 1 1/211£196.27 5 days
JBO-500064 1 3/411£230.28 5 days
JBO-500087 211£239.05 5 days
JBO-500092 2 1/411£289.49 5 days
JBO-500090 2 1/211£326.75 5 days
JBO-500094 2 3/411£350.89 5 days
JBO-500096 311£379.41 5 days
JBO-500097 3 1/211£458.34 5 days
JBO-500110 411£531.81 5 days
JBO-540586 4 1/211£702.86 5 days
JBO-540587 511£804.85 5 days
JBO-505330 5 1/211£903.54 5 days
JBO-540590 611£1,005.50 5 days
JBO-500084 1/828£223.68 5 days
JBO-500078 1/419£259.88 5 days
JBO-500105 3/819£299.34 5 days
JBO-500068 1/214£270.84 5 days
JBO-500099 3/414£289.49 5 days
JBO-500044 111£321.28 5 days
JBO-503042 1 1/211£411.20 5 days
JBO-500086 1/828£79.07 5 days
JBO-500082 1/419£94.96 5 days
JBO-500076 1/214£126.10 5 days
JBO-500116 5/814£150.21 5 days
JBO-500103 Viewing3/414£155.70 5 days
JBO-505911 7/814£196.27 5 days
JBO-500050 111£182.03 5 days
JBO-506393 1 1/811£224.79 5 days
JBO-503056 1 1/411£228.09 5 days
JBO-505430 1 1/211£254.39 5 days
JBO-506394 1 3/411£299.34 5 days
JBO-505432 211£312.51 5 days
JBO-506395 2 1/411£377.19 5 days
JBO-505433 2 1/211£424.36 5 days
JBO-506396 2 3/411£458.34 5 days
JBO-506397 311£493.44 5 days

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