Threaded Inserts of 2025
Best Choice1
E-Z LOKE-Z LOK-C108 Threaded Inserts For Metal; Assortment Kit; Carbon Steel; Heavy Wall; UNC Internal Threads, 10-24, 1/4-20, 5/16-18, 3/8-16, 1/2-13; 46 pieces
Main highlights- Self-locking with pre-applied Loctite on the external threads that is ready to use in 3-5 minutes and seals against liquids and gases to 6,000 psi when fully cured (72 hours after installation)
- Packaged in a case with a compartment for each of five different sizes: 10-24, 1/4-20, 5/16-18, 3/8-16, and 1/2-13
- Made in America - Strong, Solid Construction Design
- Ideal For Soft Metals Like Aluminum, Cast Iron, or Magnesium
- 46-piece set of solid, heavy wall, carbon steel, self-locking, unified coarse thread inserts for use in metal
9.9Exceptional
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Value for Money2
E-Z LOKE-Z Lok EK21415 Helical Threaded Insert Kit, 304 Stainless Steel, 5/8"-11 Thread Size, 0.938" Installed Length (Pack of 5)
Main highlights- QUICKLY REPAIR DAMAGED THREADS – Quickly repair damaged threads or reinforce tapped holes in soft metals with this helical thread repair kit.
- KIT INCLUDES – Convenient kit includes coil threaded inserts for metal, STI tap, and threaded insert installation tool.
- FOR USE WITH APPLICATIONS – The metal threaded inserts are designed for use with soft metals: aluminum, cast iron, magnesium, etc.
- 18-8 STAINLESS STEEL WIRE – Kit includes 18-8 stainless steel threaded inserts that are resistant to corrosion and can withstand temperatures to 800°F.
9.8Exceptional
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3
KtehloyKtehloy 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
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.
- 【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.
- 【Convenient Use and Storage】- Stored in reinforced compartmentalized boxes, all components are segregated to prevent mixing during transportation. Corresponding labels and compartments for the threaded inserts help you quickly find the desired type, significantly boosting your work efficiency.
9.7Exceptional
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4
Sprite Science1/4-20 Hex Drive Threaded Inserts for Wood - 40 Pieces
Main highlights- Threaded inserts are easy to install, simply drill the right size hole and Install with hex key provided.
- Insert head ⌀: 0.461" / 11.7mm, body ⌀: 0.315" / 8mm, threads ⌀: 0.410" / 10.4mm.
- In very Harder wood such as white oak or maple, drill a hole size (3/8", 9.5mm, 10mm drill bit) that close to the outside threads diameter, then screw insert into the place. If the drilled hole is too small for the threads, screwing it in MAY split the wood or insert.
- In Softer wood, the outside threads cut easily into the wood, simply drill a Appropriately Sized Hole (8.5mm, 9mm, 9.5mm, 3/8" drill bit) for the body of the insert, then screw insert into the place.
- 1/4-20 threaded insert x 15mm length, 6mm allen wrench included, best 1/4"-20 threaded insert wood insert furniture screw in nut connector screws.
9.6Exceptional
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5
Hapric191 PCS Threaded Inserts for Wood, 1/4"-20, 5/16"-18, 3/8"-16 Threaded Wood Inserts Furniture Screw Assortment, Wood Threaded Inserts with Hex Wrench
Main highlights- Wide Application: Suitable for most softwoods in life: fiberboard, pine, plywood, etc., can be used to repair furniture such as bed boards, chairs, sofas, etc., the exquisite label box can be given as a gift to friends or family.
- Strong Fastening Force: The threaded insert is made of galvanized steel, which is strong and rust-free. The thread is even and tight, firmly fixed in the accessories, and the smooth internal thread makes the screws seamlessly connected, and can be used for a long time without loosening.
- Reinforced Label Box: These galvanized thread inserts are packed in labeled inner and outer compartment boxes, the quantity and position of all components are clearly and orderly marked, easy to store and find, the inside of the box is reinforced with bubble film to ensure that the box will not be damaged.
- Multiple Sizes: These threaded wood inserts combination kits come in 10 sizes, including different sizes of 1/4"-20 x 10mm/15mm/20mm/25mm(120pcs), 5/16"-18 x 13mm/15mm/20mm/25mm(48pcs), 3/8"-16 x 20mm/25mm(20pcs), inner knurled nuts, a total of 188 pieces, convenient for daily various furniture assembly needs.
- How to Use: First drill the corresponding hole diameter on the wood block you need to connect, then use a wrench to vertically screw in the insert, and then connect the screws to achieve installation connection. Tip: If the furniture wood is hard, please enlarge the hole.
9.5Excellent
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6
Kadrick19% OffKadrick 420Pcs M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts
Main highlights- Suitable for 3D printing: Brass threaded inserts, which can be embedded into plastic materials using the heat from a soldering iron or ultrasound, are the optimal solution for adding threads in 3D printing.
- Secure fixation: Our brass threaded inserts are made of high-quality brass and undergo precision processing, ensuring excellent heat conduction and corrosion resistance. Through testing, we have found that compared to straight-threaded inserts, the knurled threaded inserts provide stronger gripping strength and can withstand high levels of tensile force.
- Common specifications: We have created this set of inserts using a large quantity of M3 inserts combined with M4 and M5 inserts, based on the most commonly used specifications by 3D printing enthusiasts. The heights range from 3mm to 12mm. We hope you will like it.
- Clear labeling: Each specification has its own independent compartment in the plastic box, and we have attached labels with detailed annotations for key data, making it convenient to use.
- Brand guarantee: Kadrick specializes in the production and development of fasteners. Our products have undergone rigorous testing, so you can use them with confidence. Additionally, we provide a 24-month after-sales warranty service. If you have any questions, please feel free to contact us.
9.3Excellent
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7
Anwenk40Pcs 3/8"-16 x 25mm Threaded Inserts for Wood Furniture Screw in Nut Inserts 3/8-16 Threaded Bolt Fastener Connector Hex Socket Drive for Wood Furniture Assortment (with Hex Spanner)
Main highlights- Usage: Pre-drill /drill a well-sized hole (Suggest that the diameter of the hole is 15 +/- 0.2mm, the length is about 28mm), then use an internal hex tool to screw in (Hex Spanner Included). Tip: If the furniture wood is with high-hardness, please enlarge the screw hole.
- Size: Internal Thread Insert Type: 3/8"-16, External Diameter: 15.35mm, Total Length: 25mm. (3/8"-16 x 25mm).
- Material: High quality carbon steel with high hardness. These furniture screws are wear-resistant and very durable to use,ensure a long time using in severe environment. Standard internal hex socket type without burr and non-slip design.
- Applications:These furniture screws are suitable for furniture hardwood/ solid wood, for furniture combinations.A necessity fastener for furniture repair!
- 40pieces Pack of 3/8-16 furniture screws threaded inserts for wood furniture such as soft woods, plywood and composition board.
9.2Excellent
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8
ruthexruthex Threaded Inserts M2 + M3 + M4 + M5 Assortment Box - 70 + 100 + 50 + 50 Pieces - Brass Heat Set Insert for Plastic Parts - Metric knurled Nuts - Insert by Heat into 3D Printing Components
Main highlights- SUITABLE FOR A VARIETY OF PLASTICS: The inserts are designed for all thermoplastics. For example, the knurled nuts hold in PLA, PETG, ABS, PPS, PP and many more. As soon as the plastic of the part around the brass sleeve cools and hardens, the threaded sleeve is firmly anchored
- STABLE & LONG-LASTING THREAD INSERTS: The inserts with internal thread brass, which ensures optimum corrosion resistance and thermal conductivity. This means that each insert nut can be used for a long time and is easy to use. The reusability of the insert nut is also possible by carefully removing them from the pressure part when they are no longer needed
- PRACTICAL THREAD INSERT BOX: The ruthex threaded inserts box are lead free and consists of 70 pieces RX-M2x4 + 100 pieces RX-M3x5.7 + 50 pieces RX-M4x8.1 + 50 pieces RX-M5x9.5 Insert nuts with M2, M3, M4 and M5 internal thread. The thread inserts are supplied in a practical assortment box. The threaded sleeves can be used by ultrasonic and be inserted by ultrasonic and heat embedding
- M2 + M3 + M4 + M5 THREAD INSERTS FOR YOUR 3D PRINTED PARTS: The ruthex threaded nuts can be retrofitted by heat or ultrasound into parts of 3D printers from e.g. Anycubic, Creality or Prusa. With the help of heat from a soldering iron or ultrasound, the insert nuts are simply embedded in a blind or through hole
- FIRM HOLDING WITH EASY APPLICATION: Thanks to the geometry of the threaded sleeve, it holds firmly in the pressure part. The opposing spiral-shaped knurled nuts ensure a high balanced tightening and loosening torque, as well as a high tightening force. Through the guide, insertion has been greatly simplified
9.0Excellent
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9
3DZWMANHeat Set Insert Tool with 370PCS Threaded Inserts Brass Inserts 3D Printing,Heat Set Insert tip for Thread Knurled Nut M2/M3/M4/M5/M6(1/4)/M8… B0CNWJR455
Why we love it
Easy voltage conversion.
Perfect for 3D printing tasks.
Durable and long-lasting components.
8.8Very Good
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10
ATHYUTHThreaded Inserts for Wood, 121 Pieces Zinc Plated Steel Thread Insert Nuts Assortment kit for Hardwoods, Hex Socket Flanged Threaded Wood Inserts M4 M5 M6 M8 M10 Screw Inserts for Wooden Furniture
Main highlights- 【Wide Application】Suitable for soft woods such as pine, plywood, composition board and MDF, MDF, also great used for hard wood, Ideal for assembling all kinds of wooden furniture.
- 【Product Features】The outer thread pitch is even, the force is more solid, and the inner thread surface is smooth without residual burrs to improve working efficiency.
- 【Premium material】 Made of high quality zinc plated carbon steel which has good oxidation and corrosion resistance, high hardness, not easy to wear and durable.
- 【Package include】 the Kit Included 121 PCS Hex Socket Threaded Insert Nuts, 7 Most-used size (Metric): M4*10mm (30 PCS) M5*10mm (30 PCS) M6*10mm (20 PCS), M6*15mm (15PCS) M8*15mm (10 PCS), M8*20mm (10 PCS) M10*25mm (6 PCS). The complete range of sizes are enough to meet your various needs.
- 【How to Use】 Pre-drill a proper holes in the wood products , screw in the insert nut with an allen tool, so the external thread bite into the wood, preventing the insert nut from loosing or pulling out.
8.6Very Good
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