Insize American Standard Thread Ring Gauge 1 1/4-8UN Class 2A GO Series 4121-1G58

The Insize 4121-1G58 American Standard Thread Ring Gauge is a precision GO thread gauge designed for accurate inspection and verification of external Unified threads. Manufactured to ANSI/ASME B1.2 standards, this...
£261.00
£0.00
£261.00
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Vendor: INSIZE
SKU: 4121-1G58
Availability: In Stock
Subtotal: £261.00
INSIZE Gauges Insize American Standard Thread Ring Gauge 1 1/4-8UN Class 2A GO Series 4121-1G58

Insize American Standard Thread Ring Gauge 1 1/4-8UN Class 2A GO Series 4121-1G58

£0.00 £261.00

Insize American Standard Thread Ring Gauge 1 1/4-8UN Class 2A GO Series 4121-1G58

£0.00 £261.00

The Insize 4121-1G58 American Standard Thread Ring Gauge is a precision GO thread gauge designed for accurate inspection and verification of external Unified threads. Manufactured to ANSI/ASME B1.2 standards, this high-precision ring gauge is ideal for machining, production inspection, and quality control applications requiring reliable thread checking.

Designed for Class 2A thread inspection, the gauge ensures consistent verification of thread accuracy and dimensional compliance in industrial and engineering environments.

Key Features & Benefits

  • Precision GO thread ring gauge for external thread inspection
  • Suitable for 1 1/4-8UN Unified threads
  • Manufactured to ANSI/ASME B1.2 standard
  • Class 2A thread tolerance
  • Provides accurate and repeatable thread verification
  • Ideal for machining, manufacturing, and inspection applications
  • Supplied with manufacturer inspection certificate
  • Durable hardened construction for long service life
  • Designed for professional workshop and quality control use

Technical Specifications

  • Part Number: 4121-1G58
  • Thread Size: 1 1/4-8UN
  • Gauge Type: GO Ring Gauge
  • Thread Standard: ANSI/ASME B1.2
  • Thread Class: 2A
  • Application: External Unified thread inspection
  • Inspection Certificate: Included

Insize thread ring gauges are manufactured for precision thread verification and are suitable for production environments, machining workshops, toolrooms, and quality assurance applications where accurate thread inspection is essential.

Well-designed, durable high-precision gauges suitable for industrial inspection and thread checking applications. Insize thread gauges deliver dependable accuracy and repeatability for professional measurement and quality control tasks.

Insize is globally recognised for manufacturing professional precision measuring instruments and inspection equipment trusted by machinists, engineers, and quality control professionals worldwide.

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Shipping

Shipping within Australia is free. Please note delivery times to remote and very remote (Zone 3 and 4 postcodes) destinations around Australia will have longer delivery times due to postal processing and the distance to destination. Our handling time will remain as next day dispatch on all orders placed before 8am, ensuring you receive your item as quickly as possible.

AU Post is used for all shipping unless very large items require a courier. Tracking will be provided on all purchases.

Returns

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.

Additional non-returnable items

Gift cards
Downloadable software products
Some health and personal care items

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer. Any item not in its original condition, is damaged or missing parts for reasons not due to our error
Any item that is returned more than 30 days after delivery

Refunds (if applicable)

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us at mailto:accounts@twineagleimports.com.au.

Sale items (if applicable)

Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

Exchanges (if applicable)

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at mailto:accounts@twineagleimports.com.au and send your item to: Twin Eagle Imports PTY LTD, 198 spinebill dr, greenbank QLD 4124, Australia.

Gifts

If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.

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