Somta Series 581 - HSS Straight Flute Parallel Pipe Bottom (Finishing) Tap NPS 3/8" x 18 TPI

HSS NPS 3/8″ Bottom Tap – Somta Series 581 The SOMTA 5810953 – HSS NPS 3/8″ Bottom Tap is a high-precision tool used for cutting straight (parallel) internal pipe threads...
$122.72
$122.72
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Vendor: SOMTA
SKU: 5810953
Availability: In Stock
Subtotal: $122.72
Somta Series 581 - HSS Straight Flute Parallel Pipe Bottom (Finishing) Tap NPS 3/8" x 18 TPI

Somta Series 581 - HSS Straight Flute Parallel Pipe Bottom (Finishing) Tap NPS 3/8" x 18 TPI

$122.72

Somta Series 581 - HSS Straight Flute Parallel Pipe Bottom (Finishing) Tap NPS 3/8" x 18 TPI

$122.72

HSS NPS 3/8″ Bottom Tap – Somta Series 581

The SOMTA 5810953 – HSS NPS 3/8″ Bottom Tap is a high-precision tool used for cutting straight (parallel) internal pipe threads according to ANSI NPS standards. Built from durable High-Speed Steel (HSS), this tap is ideal for threading the bottom of blind holes where a tight fit is required. The bottoming chamfer design engages only 1–2 threads, allowing full thread cutting very close to the bottom of the hole—perfect for electrical fittings, conduit systems, or low-pressure mechanical applications.

Key Features & Benefits

  • Bottoming Chamfer – Enables full thread depth in blind holes with only 1–2 lead threads.
  • NPS Pipe Thread (Straight) – Used for parallel-threaded assemblies requiring precise mechanical fits.
  • Straight Flute Design – Supports stable cutting in a wide range of materials, including aluminum, brass, and steel.
  • High-Speed Steel (HSS) – Provides excellent wear resistance and durability in workshop and production environments.
  • Right-Hand Threading – Standard direction for compatibility with most tapping systems.

Technical Specifications

  • Part No: 5810953
  • Thread Type: NPS (National Pipe Straight)
  • Nominal Size: 3/8″ NPS
  • Tap Style: Bottoming Tap
  • Chamfer: Bottom – 1 to 2 threads
  • Flute Type: Straight Flute
  • Thread Direction: Right-Hand
  • Material: High-Speed Steel (HSS)
  • Application: Blind-hole tapping in mechanical and low-pressure pipe assemblies
  • Standard: ANSI NPS

Why Choose the SOMTA 5810953 Bottom Tap?

  • Precision Cut Threads – Perfect for electrical fittings, conduit, and mechanical applications needing a straight pipe thread.
  • Optimized for Blind Holes – Bottom chamfer enables maximum thread depth in limited spaces.
  • Industry-Grade HSS – Long-lasting performance with excellent edge retention.
  • ANSI Compliant – Ensures thread compatibility with standardized pipe fittings.

The SOMTA 5810953 NPS 3/8″ Bottom Tap is a reliable tool for professional and industrial use, delivering clean, accurate threads where blind-hole and parallel pipe fitting precision are essential.

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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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