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Best metric inserts kits - Holiday Sale 2025

Last Updated - December 14, 2025

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

SENNMONN

SENNMONN M11X1.5 Metric Thread Repair Kit with Insert HSS Drill, Tap, Counterbore, Installation Driver, 10PCS Stainless Steel Insert M11X1.5X30MM

SENNMONN

$105.00

More Details
Main highlights
- PROFESSIONAL QUALITY: Special design counterbore is used to cut a recessed lip which takes the flange of the inserts.Makes your work much better.
- PRECISION RESTORATION: Our Thread Repair kit is Used to Repair or Replace Damaged or Stripped Internal Screw Threads. Ideal for a wide range of uses, this kit is particularly well-suited for engine repairs and various automotive applications.
- KIT INCLUDES: Drill x1, Counterbore x1, Tap x1, Install Driver x 1, M11x1.5x30MM Inserts x10. with Custom EVA Box.
- DURABLE STAINLESS STEEL INSERTS: Solid steel insert made insert creates stronger internal thread and much stronger and durable than helicoil.
- CUSTOM EVA BOX: Comes with a specially designed EVA packaging box tailored for the kit, offering secure and organized storage, as well as easy portability.
$105.00
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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

E-Z LOK

E-Z Lok Threaded Inserts For Metal; Assortment Kit; Carbon Steel; Metric Internal Threads, M3-0.5, M4-0.7, M5-0.8, M6-1.0, M8-1.25; 50 pieces

E-Z LOK

$91.52

More Details
Main highlights
- THREADED INSERTS FOR METAL – E-Z LOK Threaded Insert Assortment Kit for metal. Threaded inserts for putting strong, machine threads in metal.
- STRONG THREADS MADE EASY – Simply drill the hole with a standard drill. Tap the hole with a standard tap. Turn in the insert with a screwdriver, bolt/jam nut, or an E-Z LOK drive tool.
- QUICKLY REPAIR DAMAGED THREADS – Quickly repair damaged threads or reinforce tapped holes in metals with this thread repair kit.
- FOR USE WITH APPLICATIONS – The metal threaded inserts are designed for use with soft metals: aluminum, cast iron, magnesium, etc.
- AVAILABLE OPTIONS – Kit is available in carbon steel threaded inserts and stainless steel threaded inserts that are easy to install with standard tools.
$91.52
3
Best Value

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Ktehloy

Ktehloy 400Pcs Threaded Inserts, M2 M2.5 M3 M4 M5 M6 Female Thread Metric Knurled Nuts Assortment Kit, Brass Heat Set Insert for Plastic and 3D Printing Components (Threaded Inserts Ket)

Ktehloy

$14.99

$15.97
(6% Off)

More Details
Main highlights
- 【Wide Application】 - These inserts are designed for use with all thermoplastics, including materials like PLA, PETG, ABS, PPS, PP, and others. Whether installing them in 3D printed objects, injection-molded plastic parts, automotive plastic casings, or laptop shells, these inserts offer reliable and durable solutions.
- 【Precision Craftsmanship】- High-precision and clear threading ensures stability and reliability, preventing thread slippage during rotation. The 45-degree angled knurling significantly enhances torque resistance and tensile strength, ensuring a stronger fastening. The embedded nuts feature guiding elements, eliminating the need for countersinking or recessing, making your work more convenient and efficient.
- 【Package Content】- The package includes 400 high-quality metric threaded inserts for plastic heat-setting. With a large quantity available, it meets the needs for connecting numerous 3D printing accessories. The threaded brass inserts are approximately sized at M2 M2.5 M3 M4 M5 M6. Please ensure the nut's size matches your plastic parts effectively.
- 【High-Quality Threaded Inserts】- Crafted from top-tier brass materials, these threaded inserts boast outstanding thermal conductivity, corrosion resistance, and durability. They exhibit remarkable resistance against breakage and deformation. Withstanding temperatures exceeding 300°C / 572°F, they easily endure the harsh heat generated during plastic thermal shaping processes.
- 【Easy to Use】- Brass threaded inserts can be installed into components of a 3D printer through heating or ultrasonic methods, or molded during the injection process. They are also suitable for circuit board assembly and the electronics field. With a common soldering iron, you can easily place them into the holes of 3D prints.
$14.99
$15.97 (6% Off)
4

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Orion Motor Tech

Orion Motor Tech Thread Repair Kit, Metric Helicoil Repair Kit with HSS Drill Bits Thread Inserts Taps Breakoff Installation Tools, Portable Rethreading Tool Kit in M5 M6 M8 M10 M12 Sizes

Orion Motor Tech

$35.99

More Details
Main highlights
- WIDE APPLICATION: This helicoil repair kit is engineered to effectively restore stripped, damaged, or worn threads on a variety of materials, including aluminum, iron, carbon steel, bronze, magnesium, and more!
- STORAGE CASE INCLUDED: The included carry case not only keeps all your rethreading tools organized but makes it easy to transport this helicoil kit from one job to the next, ensuring a hassle-free experience for you.
- METRIC THREAD REPAIR KIT: Orion Motor Tech's helicoil thread repair kit includes 110 thread inserts, 10 installation and breakoff tools, 5 screw taps, 5 drill bits, and a hex wrench in the 5 most needed metric sizes: M5 M6 M8 M10 M12.
- EASY TO USE: These 135° drill bits help reduce the amount of pressure needed to make the drill cuts, while the rubber coated installation and tang breakoff tools provide a comfortable and sure grip as you work.
- BUILT TO LAST: The drill bits and screw taps in this thread repair tool set are constructed from high quality steel that is heat treated to a HRC of 50-60, while each thread insert is made of 304 stainless steel for great strength and longevity.
$35.99
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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Trivd Frol

Trivd Frol Rivet Nut Tool Kit, 520pcs SAE & Metric Rivet Nut Assortment Kit w Galvanized Carbon Steel Flat Head Threaded Insert Nuts, Sizes 6-32 8-32 10-24 1/4"-20 5/16"-18 3/8"-16 M3 M4 M5 M6 M8 M10

Trivd Frol

$26.99

More Details
Main highlights
- 【WIDE APPLICATION】: Our rivnuts are used to provide firm and problem-free attachment for screws and bolts in home improvement and for a wide range of manufacturing including automobiles, aircraft, appliances, furniture, decoration, and more.
- 【THICKENE AND CLEARLY-LABELED TOOL BOX】: These rivet nut kit is lightweight, very convenient to carry. Meanwhile, the transparent storage box had been thickened, more durable and sturdy than others, enough to accommodate all items safely.
- 【RIVET NUTS FEATURE】: Head Type: Flat Head; Our riv nuts have a work-hardened surface providing high-strength, load-bearing threads.
- 【RIVET NUT SIZE】: In this rivnut set, we provide 12 size of rivnuts, includes: M3---60pcs, M4---60pcs, M5---50pcs, M6---50pcs, M8---20pcs, M10---10pcs, #6-32---60pcs, #8-32---60pcs, #10-24---60pcs, 1/4-20---50pcs, 5/16-18---30pcs, 3/8-16---10pcs total 520pcs.
- 【DURABLE QUALITY】: These nut sert kits boast superior strength and offer corrosion-free, rotation-resistant performance and acid resistant thanks to their precision threading and quality construction from galvanized carbon steel. You will no longer worry about them rusting and breaking when installing.
$26.99

Best metric inserts kits - Holiday Sale 2025

SENNMONN M11X1.5 Metric Thread Repair Kit with Insert HSS Drill, Tap, Counterbore, Installation Driver, 10PCS Stainless Steel Insert M11X1.5X30MM

E-Z Lok Threaded Inserts For Metal; Assortment Kit; Carbon Steel; Metric Internal Threads, M3-0.5, M4-0.7, M5-0.8, M6-1.0, M8-1.25; 50 pieces

Ktehloy 400Pcs Threaded Inserts, M2 M2.5 M3 M4 M5 M6 Female Thread Metric Knurled Nuts Assortment Kit, Brass Heat Set Insert for Plastic and 3D Printing Components (Threaded Inserts Ket)

Orion Motor Tech Thread Repair Kit, Metric Helicoil Repair Kit with HSS Drill Bits Thread Inserts Taps Breakoff Installation Tools, Portable Rethreading Tool Kit in M5 M6 M8 M10 M12 Sizes

Trivd Frol Rivet Nut Tool Kit, 520pcs SAE & Metric Rivet Nut Assortment Kit w Galvanized Carbon Steel Flat Head Threaded Insert Nuts, Sizes 6-32 8-32 10-24 1/4"-20 5/16"-18 3/8"-16 M3 M4 M5 M6 M8 M10

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