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TIME-SERT® Master Thread Repair Kit – UNC Coarse 1/4–1/2″ (120-Piece Set)

£740.25

Ease of Fitment Guide: Beginner

For flat or conical sealing seat
  • Ensures reliable processing, even with weak walls
  • Compatible with thin-walled materials
  • Media-tight for added security
  • Self-locking for dependable use
  • Precisely positions in the workpiece for a perfect fit

Order your TIME-SERT kit today for a fast and secure solution to your thread repair needs!

Brand:TIME-SERT

Description

TIME-SERT® Master Kit UNC – 120-Piece Coarse Thread Repair Set

Experience unparalleled reliability and precision with the TIME-SERT UNC Repair Kit – 120-Piece Coarse Thread Repair. This professional kit restores stripped or damaged UNC threads in steel, stainless steel, aluminum, cast iron, titanium, and other metals. Moreover, it is ideal for automotive, industrial, heavy-equipment, and precision engineering applications, delivering durable and high-accuracy results. Explore our full range of TIME-SERT® UNC Inserts for additional sizes and options.

Key Highlights

  • Complete UNC Repair Solution for 1/4″ to 1/2″ threads
  • Professional-Grade Kit with drills, taps, counterbores, and insert tools
  • High-Strength Inserts engineered for durability under stress
  • Precision Fitment with self-locking, pressure-sealed insert design
  • Ideal for Automotive & Engineering applications requiring reliable thread restoration

Key Features

  • Solid Bushing Inserts – Provide full load-bearing strength and resist vibration-related loosening.
  • Self-Locking Design – Cold-rolled installation expands the insert into the parent metal, locking it permanently.
  • Pressure-Sealed Threads – Prevent leakage of oil, water, fuels, and compressed gases.
  • Thin-Walled Construction – Allows installation in limited-clearance areas while maintaining strength.
  • Positive Placement Flange – Prevents insert wind-down and ensures accurate installation depth.

Why Choose This TIME-SERT UNC Repair Kit?

  • OEM-Approved System – Trusted by leading automotive manufacturers worldwide.
  • Long-Lasting Repairs – Restores threads to equal or greater strength than original OEM threads.
  • Versatile Material Compatibility – Works in steel, aluminum, titanium, magnesium, copper alloys, and more.
  • Professional Reliability – Perfect for mechanics, machinists, fleet maintenance, and engineering workshops.

Application and Instructions

Select the correct insert size, drill the damaged hole, counterbore the top, tap new threads, and install the flanged TIME-SERT® insert using the expanding driver. Consequently, the insert cold-rolls into place for a secure, permanent repair. For additional thread sizes, visit our TIME-SERT® section.

Contents

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Item / Thread Size Quantity
1/4-20 Inserts – Sizes: 1/4-20 x .380 & 1/4-20 x .500 20 (10 short, 10 long)
5/16-18 Inserts – Sizes: 5/16-18 x .450 & 5/16-18 x .620 20 (10 short, 10 long)
3/8-16 Inserts – Sizes: 3/8-16 x .520 & 3/8-16 x .750 20 (10 short, 10 long)
7/16-14 Inserts – Sizes: 7/16-14 x .620 & 7/16-14 x .870 20 (10 short, 10 long)
1/2-13 Inserts – Sizes: 1/2-13 x .650 & 1/2-13 x 1.00 20 (10 short, 10 long)
Driver Oil Bottle 1 × 37 ml
Drills, Counterbores, Taps & Insert Drivers Included per thread size

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Technical Specifications

Specification Value
Brand TIME-SERT®
Kit Type UNC Standard Thread Repair Kit
Number of Pieces 120
Material 9SMn/Pb28K Steel Inserts
Applications Automotive, Industrial, Engineering, Heavy Machinery
Thread Sizes 1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13
Insert Finish Galvanized / Black Carbon Steel

For spark plug repairs, consider TIME-SERT® Copper Inserts. Explore more in our TIME-SERT Inperial and Metric Thread Repair Inserts sections.

Check out customer reviews on Trustpilot for honest feedback.

Video Demo

Brand

TIME-SERT

TIME-SERT Thread Repair: Precision and Durability

TIME-SERT thread repair kits are innovative solutions for damaged or stripped threads. Whether you’re working on automotive repairs, machinery, or industrial equipment, these kits provide an efficient and reliable thread repair system. This repair solution is trusted by professionals for its precision and durability, ensuring a permanent fix for threads that have lost their integrity. [show_more more="Read more" less="Read less"]

Why Choose TIME-SERT for Thread Repair?

These kits stand out because they offer more than a simple fix. The thread repair inserts create stronger threads than the original ones. Unlike other repair systems, these kits utilize solid bushings, ensuring the insert won’t shift or move after installation. This added strength makes them ideal for demanding applications, such as automotive engine repairs or heavy-duty machinery.

Easy Installation and Long-Lasting Results

One key advantage of this thread repair system is its easy installation process. Each kit includes detailed instructions, along with the necessary tools, so you can complete repairs with confidence. The result is a long-lasting, reliable repair insert that restores the original strength and functionality of the damaged area. Whether you're working on a small or large repair, these inserts make the job simple and effective.

Versatile Applications for Any Project

These repair tools are versatile enough for various materials, including aluminum, steel, and cast iron. This makes the kits a go-to solution for a wide range of industries. From automotive to marine to industrial, the thread repair inserts work in any environment. Whether you're fixing engine blocks, spark plug holes, or transmission cases, this repair solution delivers dependable results.

A Trusted Name in Thread Repair Solutions

TIME-SERT has earned its reputation through years of quality and performance. Mechanics, engineers, and DIY enthusiasts alike trust the tools to restore critical components. With this system, you not only repair threads but also enhance their durability, preventing future damage. This makes the kits a cost-effective, long-term solution.

TIME-SERT: The Ultimate Thread Repair Kit

In summary, TIME-SERT thread repair kits are the ideal choice for anyone needing precision, strength, and longevity in a repair system. These inserts ensure a stronger, more reliable fix than many traditional alternatives. Whether you're in the automotive industry or tackling home repairs, this solution offers unmatched quality and results you can rely on. [/show_more]
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