Prothread - 1/4 x 20 x 1.5D Free Running Thread Repair Kit | 3598-1420K

$30.78
$0.00
$30.78
Vendor: Prothread
SKU: 3598-1420K

The ProThread 1/4 x 20 x 1.5D Free Running Thread Repair Kit (3598-1420K) is designed to repair damaged, stripped, or worn UNC threads quickly and permanently. Ideal for automotive, workshop, machinery, and industrial maintenance applications, this kit restores thread strength while improving...

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ProThread 1/4 x 20 x 1.5D Free Running Thread Repair Kit | 3598-1420K

The ProThread 1/4 x 20 x 1.5D Free Running Thread Repair Kit (3598-1420K) is designed to repair damaged, stripped, or worn UNC threads quickly and permanently. Ideal for automotive, workshop, machinery, and industrial maintenance applications, this kit restores thread strength while improving resistance to wear, corrosion, and repeated assembly.

► Key Features

  • Repairs damaged or worn 1/4" x 20 UNC threads efficiently
  • Produces stronger, more durable internal threads than the original material
  • Free running stainless steel inserts provide smooth fastener engagement
  • Corrosion-resistant wire inserts suitable for harsh workshop environments
  • Ideal for aluminium, steel, cast iron, plastics, and composite materials
  • Compact insert profile allows repairs in confined spaces
  • Perfect for components requiring repeated assembly and disassembly
  • Complete repair kit supplied in convenient clam shell packaging

► Technical Specifications

  • Thread Size: 1/4" x 20 UNC
  • Thread Type: Free Running
  • Installed Length: 1.5D
  • Insert Material: Stainless Steel
  • Application: Thread Repair & Reinforcement
  • Kit Includes: Inserts, STI Tap & Installation Tool
  • Brand: ProThread
  • Part No.: 3598-1420K

► Kit Includes

  • Stainless Steel Free Running Thread Inserts
  • STI Intermediate Tap
  • Installation Tool

► Why Tradies Grab This

Perfect for restoring damaged threads without replacing costly parts. Whether you're repairing engine components, workshop equipment, or machinery housings, this kit delivers a reliable, workshop-grade thread repair built to handle ongoing use.

► Industrial Shed’s Trade Guarantee – Shop with Confidence

  • We Stand By Our Gear: Workshop-ready tools and repair solutions built for real-world use.
  • Loyalty Matters: Trade account benefits and competitive pricing for repeat customers.
  • Real Support, No Runaround: Practical advice from people who understand industrial repairs.
  • Fast Delivery, Every Time: Reliable shipping to keep your projects moving.

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

Product weight
2400 g
Material
Stainless Steel
Category
Thread Repair
Shipping calculated at checkout

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Subtotal: $30.78
Product specifications
Category
Thread Repair
Material
Stainless Steel
Product weight
2400 g
Length
9.65 mm
Width
6.35 mm
Height
0 mm
Diameter
6.35 mm
Barcode
9.32652E+12
  • 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

ProThread 1/4 x 20 x 1.5D Free Running Thread Repair Kit | 3598-1420K

The ProThread 1/4 x 20 x 1.5D Free Running Thread Repair Kit (3598-1420K) is designed to repair damaged, stripped, or worn UNC threads quickly and permanently. Ideal for automotive, workshop, machinery, and industrial maintenance applications, this kit restores thread strength while improving resistance to wear, corrosion, and repeated assembly.

► Key Features

  • Repairs damaged or worn 1/4" x 20 UNC threads efficiently
  • Produces stronger, more durable internal threads than the original material
  • Free running stainless steel inserts provide smooth fastener engagement
  • Corrosion-resistant wire inserts suitable for harsh workshop environments
  • Ideal for aluminium, steel, cast iron, plastics, and composite materials
  • Compact insert profile allows repairs in confined spaces
  • Perfect for components requiring repeated assembly and disassembly
  • Complete repair kit supplied in convenient clam shell packaging

► Technical Specifications

  • Thread Size: 1/4" x 20 UNC
  • Thread Type: Free Running
  • Installed Length: 1.5D
  • Insert Material: Stainless Steel
  • Application: Thread Repair & Reinforcement
  • Kit Includes: Inserts, STI Tap & Installation Tool
  • Brand: ProThread
  • Part No.: 3598-1420K

► Kit Includes

  • Stainless Steel Free Running Thread Inserts
  • STI Intermediate Tap
  • Installation Tool

► Why Tradies Grab This

Perfect for restoring damaged threads without replacing costly parts. Whether you're repairing engine components, workshop equipment, or machinery housings, this kit delivers a reliable, workshop-grade thread repair built to handle ongoing use.

► Industrial Shed’s Trade Guarantee – Shop with Confidence

  • We Stand By Our Gear: Workshop-ready tools and repair solutions built for real-world use.
  • Loyalty Matters: Trade account benefits and competitive pricing for repeat customers.
  • Real Support, No Runaround: Practical advice from people who understand industrial repairs.
  • Fast Delivery, Every Time: Reliable shipping to keep your projects moving.

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

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

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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