Somta Series 541 - HSS Straight Flute Short Hand Bottom (Finishing) Tap UNC 1" x 8 TPI

HSS Bottom Tap UNC 1″ x 8 – Somta Series 541 The SOMTA 5412543 – 1″ x 8 UNC HSS Bottom Tap is a heavy-duty threading tool designed for cutting...
$168.00
$168.00
(-0%)
Vendor: SOMTA
SKU: 5412543
Availability: In Stock
Subtotal: $168.00
Somta Series 541 - HSS Straight Flute Short Hand Bottom (Finishing) Tap UNC 1" x 8 TPI

Somta Series 541 - HSS Straight Flute Short Hand Bottom (Finishing) Tap UNC 1" x 8 TPI

$168.00

Somta Series 541 - HSS Straight Flute Short Hand Bottom (Finishing) Tap UNC 1" x 8 TPI

$168.00

HSS Bottom Tap UNC 1″ x 8 – Somta Series 541

The SOMTA 5412543 – 1″ x 8 UNC HSS Bottom Tap is a heavy-duty threading tool designed for cutting full-depth threads in blind holes. Manufactured from high-speed steel (HSS), this bottoming tap features a short chamfer that allows threading close to the hole base—making it ideal for maintenance, production, and repair tasks requiring high-strength UNC threads. It conforms to Unified National Coarse (UNC) thread standards and delivers consistent performance in steel, cast iron, aluminum, and other metals.

Key Features Benefits

  • Bottoming Chamfer – Short 1–2 thread lead for threading to the bottom of blind holes.
  • Unified National Coarse (UNC) – Standard 1″ diameter with 8 TPI for compatibility with UNC fasteners.
  • Straight Flute Design – Supports smooth cutting and effective chip evacuation in hand or machine use.
  • High-Speed Steel (HSS) – Provides excellent durability, cutting edge retention, and heat resistance.
  • Bright Finish – Reduces friction and helps produce clean, accurate threads.
  • Versatile Use – Suitable for manual tapping with wrenches or powered operations with tapping heads.

Technical Specifications

  • Part No: 5412543
  • Thread Size: 1″ x 8 TPI
  • Thread Standard: UNC – Unified National Coarse
  • Tap Type: Bottoming (short chamfer for blind holes)
  • Flute Style: Straight flute
  • Cutting Direction: Right-hand
  • Material Finish: High-Speed Steel (HSS), Bright
  • Standard: ANSI / Unified Inch

Why Choose the SOMTA 5412543 UNC Bottom Tap?

  • Perfect for Blind Hole Tapping – Bottoming lead enables full thread formation to the hole base.
  • Durable Construction – HSS material extends tool life even under high-load conditions.
  • Reliable Thread Form – Meets UNC thread standards for universal fit and compatibility.
  • Ideal for Industrial Use – Trusted by professionals for tooling, repair, and fabrication tasks.

The SOMTA 5412543 tap provides dependable threading for 1″ UNC applications in blind holes. Built from high-speed steel and engineered to deliver precision and repeatability, it’s a must-have tool for heavy-duty threading jobs.

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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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