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5 Best Nut Inserts of 2025

Last Updated - 2025/06/23

1
Best Choice

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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.

NEXTACK

NEXTACK Rivet Nut Tool w/ 105pc Nurserts, 16" Heavy Duty Rivnut Tool Kit w/ 12pc Mandrels 8-32 10-24 10-32 1/4-20 5/16-18 3/8-16 1/2-13 M5 M6 M8 M10 M12 in Organized Rugged Carrying Case NT800

NEXTACK

CA$97.59

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Main highlights
- 【Warm Tips】Please note the mandrels are consumable and may be damaged with uneven pressure and improper use. If any issue during using please message us.
- 【Versatile Application】The threaded hand rivet nut setter kit can help you add attachedment with bolt on working piece securely like metal, fiberglass in different occasion like van wall, metalworking, railway, aviation, bicycle, off-road, RV and home modification.
- 【Maximum Leverage & Productivity】The nutsert tool set features 16” extra-long handles maximizing the leverage to tackle any challenge(upto 1/2 & M12 capacity), detachable modular design for easy and tool-free mandrels changing and maintenance.
- 【Innovative Upgraded Design】One squeeze, and you're done. The used nutsert can be released quickly by opening and closing handles continuously rather than screwed out manually.
- 【Compact Organized Storage】The rivet nut tool rivet nut kit includes: 1*Rivet Gun, 105*Rivnut Kit(Stored in a labeled box), 12* Interchangeable Mandrels 8-32 10-24 10-32 1/4-20 5/16-18 3/8-16 1/2-13 M5 M6 M8 M10 M12, 1*User Manual,1*Wrench, all packed in a heavy-duty blow-molded portable case.
- 【Built to Last】 The rivet nut gun is forged by high strength full aluminum alloy housing, industrial quality steel handles with blacken and heated treatment for rust resistent/rustproof, and ergonomic non-slip PVC grips.
CA$97.59
2

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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.

RZX

RZX 16" Rivet Nut Tool, Professional Rivet Nut Tool Setter Kit Including 12 Metric and SAE Mandrels, 115Pcs Assorted Rivet Nuts, Effortless Design, Aluminum Carrying Case

RZX

CA$77.98

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Main highlights
- 【WIDE APPLICATIONS】- Provide a customized fastener solution for wide riveting applications, such as body panels, bicycle attachments, furniture and decorations, especially for off-road / Jeep modifications
- 【Strong ,Durable And Saving Energy】- The 16 inch longer carbon steel arm and ergonomic handles with double compound hinges maximizing leverage , it definitely save much effort than normal 14 inch rivet nut tool ，especially bigger size：M10,M12 ,3/8,1/2,Even lady can do DIY easily by themselves.
- 【SATISFACTION & WARRANTY 】2 Year Warranty – If any problem in use,please feel free to contact us, we will reply you as soon as possible.M8 Mandrel already on the tool so the plastic box is empty.
- 【EASY TO USE】- Tool-free quick-change head design make it simple to change mandrels and nose pieces quickly without the need for additional tools, smooth your project and save your tim
- 【COMPLETE ACCESSORIES】- Equipped with 12PCS interchangeable mandrels(Metric M3 M4 M5 M6 M8 M10 M12; SAE 10-24, 1/4-20, 5/16-18, 3/8-16，1/2-13) and 115pcs rivet nuts
CA$77.98
3

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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.

HARDELL

HARDELL 14" Rivet Nut Tool, Hand Rivet Tool Kits with 100Pcs Rivet Nuts and 7 Metric & Inch Mandrels M6 M8 M10, 1/4-20, 5/16-18, 3/8-16, 10-24 and Rugged Carrying Case

HARDELL

CA$55.99

More Details
Main highlights
- 【Wide Applications】The Hand rivet nut setter kit with ergonomic handles maximizing leverage and for easy operation, saves energy. Delicate Shape Heavy Duty Nut rivet tool is Ideal for Working in Hard-to-reach Areas. Great for Vehicle modifications/Furniture/Metal/Iron/plastic/plate riveting.
- 【Sturdy and Durable】Heat-treated Chrome Vanadium alloy steel mandrels make the Rivnut tools more durable than carbon-steel rivet gun sets. The six sizes of mandrels in the tool kits can meet the needs of various jobs.
- 【Package Contents】1 x 14inch Rivet Nuts Tool, 7 x Mandrels, 100 x Rivet Nuts, 1 x Tool Case, 1 x Product specification. A rugged carrying case is available to keep all the Rivet Nut Kit and accessories to prevent scratching or loss.
- 【Multiple Accessories】HARDELL rivet nut tool kit complete with 7pcs interchangeable mandrel(M6, M8, M10, 10-24 , 1/4"-20, 3/8"-16, 5/16"-18)and 100PCS rivet nuts. A rugged carrying case is available to keep all the tools and accessories.
- 【Easy Riveting】Unique design and thoughtful instruction Manual allows for easy changing of mandrels of riv nut gun kit by Hand.
CA$55.99
4
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.

INCLY

INCLY 440PCS Threaded Inserts M2 M2.5 M3 M4 M5 M6 Brass Heat Set Inserts for Plastic Parts Metric Knurled Nuts Assortment Kit for 3D Printing Components Injection Molding

INCLY

CA$28.99

More Details
Main highlights
- 【Wide Applications】This threaded inserts can be embedded in a wide range of plastics, and a variety of sizes ensure that you can choose from different hole sizes and thread sizes. It is widely used in the fields of electronics, hardware, lighting, toys, bathrooms, furniture, medical, sports equipment and other industries.
- 【Product Introduce】Incly threaded inserts assortment kit is contain 440pieces of M2 M2.5 M3 M4 M5 M6 female thread knurled nuts in 18 sizes and 1 piece of adapter，which can meet your needs for connecting numerous plastic components. Comes with a tweezers for your convenience.
- 【High Quality Brass Material】Threaded inserts for plastic are made of high quality brass，which has excellent thermal conductivity, anti-oxidation , durability properties, and does not release harmful substances, ensuring ensuring that each nut inserts will last for a long time.
- 【Excellent Torque Resistance】The threaded inserts exterior has a high-precision and clear thread knurling design，after the copper insert is thermally injected into the plastic part, due to the embossing process on the outer diameter of the product, it forms a certain friction force and bite force with the product after forming, which can ensure a high tightening force, making your work more convenient and efficient.
- 【Easy to Use】Brass threaded inserts can be mounted into parts of 3D printers by heat set insert, ultrasonic.Another major use is to inject the product into some plastic parts, which can form an effective internal thread after installation.
CA$28.99
5

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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.

Besitu

Besitu 360Pcs Threaded Inserts M2 M2.5 M3 M4 M5 M6 Brass Heat Set Insert for Plastic Metric Knurled Nut Inserts Kit for 3D Printing Components Injection Molding

Besitu

CA$26.79

More Details
Main highlights
- 【WIDE VARIETY OF SIZES】This kit includes metric threaded inserts in different sizes and lengths, including M2 M2.5 M3 M4 M5 M6, 360Pcs in total. Providing you with a wide selection to meet your specific needs.
- 【WIDE APPLICATIONS】The threaded inserts kit is not limited to 3D printing applications. It can also be used for injection molding, wood working, and various repair and restoration projects. The inserts can be used to create strong threaded holes in a variety of materials, including ABS, PLA, PETG, nylon, and wood.
- 【TWO YEAR WARRANTY】Order your own set of threaded inserts today, you would love it. and if you have any quesitons and problems, please feel free to contact us, we would provide the best solution within 12 hours.
- 【ORGANIZED PACKAGING BOX】With a total of 350 pieces, this assortment kit offers a sufficient quantity of threaded inserts to support multiple projects. The organized packaging makes it easy to locate and access the specific inserts you require, saving you time and improving efficiency during work.
- 【HIGH QUALITY BRASS】The threaded inserts are made of high-quality brass, which offers excellent durability and corrosion resistance. This ensures that the inserts will securely fastern into your plastic or 3D printed parts and maintain their integrity over time.
- 【FIRM HOLD AND EASY INTALLATION】Each insert features female threads and a knurled exterior, which provide enhanced grip and stability when installed. The knurled design allows for easy insertion and ensures a tight fit, preventing the inserts from coming loose under normal operating conditions.
CA$26.79

5 Best Nut Inserts of 2025

NEXTACK Rivet Nut Tool w/ 105pc Nurserts, 16" Heavy Duty Rivnut Tool Kit w/ 12pc Mandrels 8-32 10-24 10-32 1/4-20 5/16-18 3/8-16 1/2-13 M5 M6 M8 M10 M12 in Organized Rugged Carrying Case NT800

RZX 16" Rivet Nut Tool, Professional Rivet Nut Tool Setter Kit Including 12 Metric and SAE Mandrels, 115Pcs Assorted Rivet Nuts, Effortless Design, Aluminum Carrying Case

HARDELL 14" Rivet Nut Tool, Hand Rivet Tool Kits with 100Pcs Rivet Nuts and 7 Metric & Inch Mandrels M6 M8 M10, 1/4-20, 5/16-18, 3/8-16, 10-24 and Rugged Carrying Case

INCLY 440PCS Threaded Inserts M2 M2.5 M3 M4 M5 M6 Brass Heat Set Inserts for Plastic Parts Metric Knurled Nuts Assortment Kit for 3D Printing Components Injection Molding

Besitu 360Pcs Threaded Inserts M2 M2.5 M3 M4 M5 M6 Brass Heat Set Insert for Plastic Metric Knurled Nut Inserts Kit for 3D Printing Components Injection Molding

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