Alpha STI Thread Repair Tap 3/8" x 16 BSW HSS Intermediate
Alpha STI Thread Repair Tap 3/8" x 16 BSW HSS Intermediate

Alpha - STI Thread Repair Tap 7/16" x 20 UNF HSS Intermediate | STIUNFHI716

$68.57
$68.57
Vendor: Alpha
SKU: STIUNFHI716

The Alpha 7/16" x 20 UNF STI tap (STIUNFHI716) cuts the oversized thread needed to fit 7/16" x 20 UNF wire thread inserts. It's the same genuine Alpha tap supplied in the matching thread repair kit.

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Alpha - STI Thread Repair Tap 7/16" x 20 UNF HSS Intermediate | STIUNFHI716

The Alpha 7/16" x 20 UNF STI tap (STIUNFHI716) cuts the oversized thread needed to fit 7/16" x 20 UNF wire thread inserts. It's the same genuine Alpha tap supplied in the matching thread repair kit.

► Key Features

  • Cuts the oversized STI thread that wire thread inserts are designed to sit in
  • Intermediate lead helps the tap start accurately and cut smoothly
  • High-speed steel for durable cutting and long tool life
  • Precision STI thread geometry for accurate insert fit
  • Manufactured to ISO 529

► Technical Specifications

  • Brand: Alpha
  • Part No.: STIUNFHI716
  • Suits insert thread: 7/16" x 20 UNF
  • Thread type: UNF
  • TPI: 20
  • Tap style: STI (screw thread insert), intermediate
  • Material: HSS (high-speed steel)
  • Shank: Square drive
  • Standard: ISO 529
  • Pack: 1 piece, supplied in a tube
  • Tapping drill: 11.5mm

► Use With

  • Install tool: TRHIT-14
  • Complete kit: TRK-UNF-716

► Why Tradies Grab This

STI taps are the first thing to wear in a thread repair kit. A sharp replacement keeps the inserts seating properly, so the kit stays in service instead of being replaced.

► Industrial Shed’s Trade Guarantee – Shop with Confidence

  • We Stand By Our Gear: Genuine Alpha thread repair, sourced direct from Australian distributor Sheffield Group.
  • Loyalty Matters: Trade account perks for repeat customers.
  • Real Support, No Runaround: Backed by a crew who actually use the tools.
  • Fast Delivery, Every Time: Get what you need without delays.

► Stock won’t last — get yours now at Industrial Shed!

  • Brand: Alpha
  • Part No.: STIUNFHI716
  • Suits insert thread: 7/16" x 20 UNF
Product size
7/16" x 20 UNF
Material
HSS
Shipping calculated at checkout

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Subtotal: $68.57
Product specifications
Material
HSS
Product size
7/16" x 20 UNF
TPI
20
Thread Type
UNF
Spec Standard
ISO 529
Brand
Alpha
Part No.
STIUNFHI716
Suits insert thread
7/16" x 20 UNF
Thread type
UNF
TPI
20
Tap style
STI (screw thread insert), intermediate
Material
HSS (high-speed steel)
Shank
Square drive
Standard
ISO 529
Pack
1 piece, supplied in a tube
Tapping drill
11.5mm

  • On time, every time

    Delivery across Australia, with tracking sent after dispatch. Ordering a large or heavy item? Ask our team to confirm freight costs and delivery arrangements before you buy.

    Delivery information

  • Secure payments

    Pay through our secure checkout with the card and express payment options available for your order. Review your items, delivery charges and total before confirming payment.

  • 100% happiness guarantee

    Need help after your purchase? Contact our Somerville team with your order number. We can help with product issues and explain your return options, including conditions and exclusions.

    Returns and support
Description  

Alpha - STI Thread Repair Tap 7/16" x 20 UNF HSS Intermediate | STIUNFHI716

The Alpha 7/16" x 20 UNF STI tap (STIUNFHI716) cuts the oversized thread needed to fit 7/16" x 20 UNF wire thread inserts. It's the same genuine Alpha tap supplied in the matching thread repair kit.

► Key Features

  • Cuts the oversized STI thread that wire thread inserts are designed to sit in
  • Intermediate lead helps the tap start accurately and cut smoothly
  • High-speed steel for durable cutting and long tool life
  • Precision STI thread geometry for accurate insert fit
  • Manufactured to ISO 529

► Technical Specifications

  • Brand: Alpha
  • Part No.: STIUNFHI716
  • Suits insert thread: 7/16" x 20 UNF
  • Thread type: UNF
  • TPI: 20
  • Tap style: STI (screw thread insert), intermediate
  • Material: HSS (high-speed steel)
  • Shank: Square drive
  • Standard: ISO 529
  • Pack: 1 piece, supplied in a tube
  • Tapping drill: 11.5mm

► Use With

  • Install tool: TRHIT-14
  • Complete kit: TRK-UNF-716

► Why Tradies Grab This

STI taps are the first thing to wear in a thread repair kit. A sharp replacement keeps the inserts seating properly, so the kit stays in service instead of being replaced.

► Industrial Shed’s Trade Guarantee – Shop with Confidence

  • We Stand By Our Gear: Genuine Alpha thread repair, sourced direct from Australian distributor Sheffield Group.
  • Loyalty Matters: Trade account perks for repeat customers.
  • Real Support, No Runaround: Backed by a crew who actually use the tools.
  • Fast Delivery, Every Time: Get what you need without delays.

► Stock won’t last — get yours now at Industrial Shed!

Shipping  

Delivery options

We deliver across Australia. Freight costs depend on the item's size, weight and delivery address. Use the freight form above to request a price for this product.

Local delivery and collection

Local delivery is available on the Mornington Peninsula. You can also collect from Factory 1/30 Simcock Street, Somerville VIC 3912. Wait for your collection confirmation before coming in.

Tracking and delivery questions

Tracking details are sent after dispatch. For delivery timing, access requirements or help with a bulky item, call 03 5978 0078.

Read the shipping and delivery policy

Returns  

Start a return

Contact us with your order number and the reason for the return. We will confirm the next steps before you send anything back.

Change of mind

The returns policy allows 14 days from delivery for eligible unused items in their original condition and packaging. Special orders and custom products are excluded from change-of-mind returns. Other exclusions may apply.

Faulty or damaged items

Send photos and a description of the problem to supportHQ@industrialshed.net.au, or call 03 5978 0078.

Read the full returns and refund policy

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