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Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

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MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Allegiance 2331057 ACME Unipass Tap 1 in x 5 TPI

$299.99 USD

Sale Sold out

✓ 30-day returns on every item — return policy

ConditionSurplus - Untested MPN2331057 Stock #0226-00680

30-day returns on every item. Photos reflect the actual item’s current condition — see our return policy and condition guide.

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⚡ Same-day shipping available — order by 11 am CT ($100 add-on at checkout)

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Used in machine shops and repair applications requiring precision ACME threaded holes, the Allegiance 2331057 is a 1"-5 NA2G ACME Unipass high speed steel tap manufactured in the USA. The Unipass tandem design combines roughing and finishing sections on a single tap body, producing Class 2G ACME threads in a single pass without requiring a lead screw. The tap measures 10-1/8 in. overall length and features 4 straight flutes with a ground HSS (HSG) construction. The thread specification of 1 in. diameter at 5 threads per inch conforms to the National ACME standard, suitable for producing load-bearing threads in through-hole applications across steel and most non-ferrous metals. ACME thread form is commonly specified for lead screws, linear actuators, and power transmission components where high load capacity and self-locking characteristics are required. The plug chamfer style is appropriate for through-hole applications. Part number 2331057 is stamped directly on the tap shank along with the thread specification, class, and country of manufacture markings.

Stock # 0226-680

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.