Best E Z Lok Nut Inserts in 2026

✅【BRASS MATERIAL】These female thread brass knurled threaded insert embedment nuts are made of durable brass. High strength without deformation, abrasion and corrosion resistance and with beautiful and practical

✅【VARIOUS SIZES TO CHOOSE】We prepare various sizes for your choice to meet all your needs. Assortment kit or one specific size, we have it all. Smooth surface with no burr, standard circular, firm and uniform, easy to install.

✅【STRANDARD AND COMPLETE THREAD】Deep thread, neat and clean, not easy to strip during rotation, stable and reliable. No need to counterbore or countersink the boss hole because the insert has guide pilot.

THREADED INSERTS FOR WOOD – E-Z LOK Thread Inserts for hard-wood are ideal for applications where stripping or thread erosion is possible. Perfect for furniture, cabinets, displays, and more.

PROPRIETARY KNIFE THREAD – E-Z Knife thread inserts provide superior holding power using a proprietary external “knife” thread to slice into the wood.

BRASS OR STEEL OPTIONS – Brass threaded inserts or stainless steel threaded inserts available. Stainless steel is recommended for particularly hard wood and anywhere corrosion resistance is needed.

✅【Well MADE AND QUALITY】These female thread brass knurled threaded insert embedment nuts are made of durable brass. High strength without deformation, abrasion and corrosion resistance and with beautiful and practical

✅【EXCELLENT WORKMANSHIP】Smooth surface with no burr, standard circular, firm and uniform, easy to install. We meet all your needs. Assortment kit or one specific size, we have it all.

✅【STRANDARD AND COMPLETE THREAD】Deep thread, neat and clean, not easy to strip during rotation, stable and reliable. Convenient operation, good texture, greatly improve your work efficiency

【🌂】 Package: 120pcs M3 Knurled Nuts Inserts;

【🌂】- Product name: M3 Threaded Laptop 3D Printer Inserts Nuts;

【🌂】Thread: M3; - Color: Bronze Tone; - Material: Brass;

THREADED INSERTS FOR WOOD – E-Z LOK Thread Inserts for hard-wood are ideal for applications where stripping or thread erosion is possible. Perfect for furniture, cabinets, displays, and more.

PROPRIETARY KNIFE THREAD – E-Z Knife thread inserts provide superior holding power using a proprietary external “knife” thread to slice into the wood.

BRASS OR STEEL OPTIONS – Brass threaded inserts or stainless steel threaded inserts available. Stainless steel is recommended for particularly hard wood and anywhere corrosion resistance is needed.

➤[15 Size] Brass thread inserts kit includes 15 assorted of size that contains M2x4x3.5mm, M2x6x3.5mm, M2x8x3.5mm, M2x10x3.5mm, M3x4x5mm, M3x6x5mm, M3x8x5 mm, M3x10x5mm, M4x4x6mm, M4x6x6mm, M4x8x6mm, M4x10x6mm, M5x6x7mm, M5x8x7mm, M5x10x7mm.

➤[High Quality Material] These female thread brass knurled threaded insert embedment nuts are made of durable brass with high hardness and wear resistance, oxidation resistance, strong corrosion resistance and long service life.

➤[Excellent Workmanship] The embedment nut has a high-precision thread that is compatible with the corresponding screw and the insert has a guide so there is no need for a counterbore or countersink. Smooth surface with no burr, standard circular, firm and uniform, easy to install.

Type of Product: Brass Threaded Insert Embedded Nuts Assortment Kit.

Product Material: Made of premium brass, which has high hardness, no deformation, durable and reliable for long time use.

Package Detail: In this set, it include 10 kinds of m2, m2.5, m3 knurl thread inserts nuts total 500pcs which are well packed in a plastic box.

Good Performance: these M3 brass nuts can be widely used in 3D printing injection molding to achieve tight fixation. Heat set Inserts can be installed by ultrasonic or heat into thread tapered hole, or molded in during injection. Just using tools such as a soldering iron or screws, you could easily set brass embedment screws into 3D printed holes.

Premium craftsmanship: the M3 brass nuts are manufactured with high-quality craftsmanship to ensure that all nuts have uniform and fixed standard round and twill thread knurl. The diameter of the front end of the nut is slightly smaller, so that you can easily align the nut in the reserved 3D printing hole. Compared with the ordinary straight-grain knurl, the twill thread knurlhas better pull-out and torque resistance, so that it will not shake and is easy to fix.

Durable material: all nuts are made of high-quality brass, which can prevent rust and oxidation, high temperature resistance, corrosion resistance, not easy to deform and have good thermal conductivity, which makes the nuts can be heated quickly and easily inserted so as to greatly shorten your work time.

【Various Sizes to choose from】This is a 170ps assortment kit which include M2*3*3—20PCS,M2*4*3.2—PCS,M2.5*3*3.5—20PCS,M2.5*6*4—20PCS,M3*3*4.2—20PCS,M3*4*4.5—20PCS,M3*5*4.5—20PCS,M3*5.7*4.6—30PCS,total 8 sizes of M2 and M3 to meet most of your needs.

【Designed for 3D printing parts and other plastic parts】 These inserts are widely used in 3D printing and other plastic parts such as PLA,PETG,ABS,PPS,PP etc., they can firmly secure two different parts together and make it look professional.

【Made of H62 Hard Brass】These heat set inserts are made of H62 High quality material, hard ,durable and corrosion-resisted at the same time ensures good thermal conductivity.

★ 【Sizes】Brass thread inserts kit includes 4 assorted of size that contains M2，M2.5，M3,M4.Come with a plastic box, each size be placed in a single grid, no mess and easy to find.

★ 【Material】Made of high quality environmentally friendly brass material, high strength and hardness, strong tolerance, the force is evenly tightened, you can use it for a long time.

★ 【Excellent Workmanship】 The embedment nut has a high-precision thread that is compatible with the corresponding screw and the insert has a guide so there is no need for a counterbore or countersink. Smooth surface with no burr, standard circular, firm and uniform, easy to install.

【Size list】M2*4*3.5 – 30Pcs, M2*6*3.5 – 30Pcs, M2*8*3.5 – 30Pcs, M2*10*3.5 – 20Pcs, M3*4*5 – 30Pcs, M3*6*5 – 30Pcs, M3*8*5 – 20Pcs, M3*10*5 – 20Pcs, M4*4*6 – 30Pcs, M4*6*6 – 20Pcs, M4*8*6 – 20Pcs, M4*10*6 – 15Pcs, M5*6*7 – 15Pcs, M5*8*7 – 10Pcs, M5*10*7 – 10Pcs.

【High quality material】Our products are made of high-quality brass, which is more beautiful and durable than iron materials.

【Assortment boxed】This product is classified and packaged in high-quality PP boxes, which is easy to store and classify.

【Designed for Injection Molding】: With deep & clear knurls, the threaded inserts will add enough strength to screw connections when inserted into plastic components. The softened plastic will flow into the knurl pattern and then harden to form a firm bond with the insert.

【High-quality Material】: Made of premium brass material, our threaded insert for plastic has both aesthetics and high strength, which can be used for a long time. And the high thermal conductivity of brass thread inserts means faster heating and insertion into plastic parts.

【How to Use】: Female thread knurled insert nuts are suitable for mounting into tapered holes by heating or for molding during injection molding. You can use a soldering iron to heat it up and then pressing it into the hole. It is easy to control and at a low cost.

THREADED INSERTS FOR PLASTIC – E-Z Sonic ultrasonic thread inserts for plastic are designed for post-molding installation in thermoplastic materials.

EASY INSTALLATION – Install these metal threaded inserts ultrasonically or with a heat driver. The tapered design simplifies installation.

FOR USE WITH APPLICATIONS – The threaded inserts for plastic are designed for putting standard machine threads in 3D printed and thermoplastic parts.

1,Packaging includes ------- In this kit, You will get You want Female Thread Knurled Nuts in sufficient quantity for your use, Easy to install: From the moment that the insert has a valve conduit, there is no need to back-drill and counter-sink the hole.

2, Various Sizes ------- In this kit, We have prepared M2 M3 M4 M5 M6 Female Thread Knurled Nuts for You, different sizes and quantity can meet your different meets. You can Free choose the products you need according to your needs. Special thread design make it easier to operate.

3, Widely used ------- Threaded insert nuts are widely used in injection molding, for fastening, can be installed in the cone hole by ultrasonic or heat, or in the injection process. Since the insert has a conduction valve, there is no need to back-drill and counter-sink the hole.

1.☛[15 Assorted Sizes] --- This set contains 300 pieces select thread inserts in 15 different sizes(Thread Size x Height x Outer Dia.): M2x3x3.5,M2x4x3.5,M2x6x3.5,M2x8x3.5,M3x6x5,M3x8x5,M3x10x5,M4x6x6,M4x8x6,M4x10x6,M5x6x7,M5x8x7,M5x10x7,M6x10x7,M6x12x7. Comes with sturdy case for convenient storage.

2.☛[Quality Brass Material] --- With excellent conduction of heat, heat tolerance, rust and corrosion resistance, wear resistance. These brass threaded inserts for plastic are strong enough to provide easy insertion and long service life.

3.☛[Exquisite Workmanship] --- These brass inserts are made in strict accordance with standard. The nice, threaded thru hole are clean without burr, accurate, uniform, not easy to deform, offering secure and durable performance.

Size M2.5 insert,Total 70pcs The insert Overall Length=5.8mm,OD4.6mm

<b>Designed for 3D printing parts and other plastic parts<b> These inserts are widely used in 3D printing and other plastic parts such as PLA,PETG,ABS,PPS,PP etc., they can firmly secure two different parts together and make it look professional.

<b>Made of Quality Brass<b> These heat set inserts are made of High quality brass, hard ,durable and corrosion-resisted at the same time ensures good thermal conductivity.

√ Quantity: VIGRUE this nuts kit includes 340pcs of M2 M2.5 M3 M4 M5 M6 Thread Knurled Nuts, and it includes 12 various common sizes knurled nuts, sufficient for daily application.

√ Great Performance: Thanks to the outside oblique threads, it holds firmly in the pressure part and ensuring a high balanced tightening, once heated plastic around the brass sleeve nuts cools and hardens, the threaded nuts are firmly anchored

√ Organized Box: The nuts come in a portable clear box with corresponding sizes label. It is convenient for you to put away and store, which allow you to get the one you need quickly, improving your project efficiently.

- Thread: M3; - Color: Bronze Tone; - Material: Brass;

- Product name: M3 Threaded Inserts Heat Set Nuts;

- Package Weight: 240g; - Pitch: 0.5mm; - Size including: M3 x 3 x 5mm, M3 x 4 x 5mm, M3 x 5 x 5mm, M3 x 6 x 5mm, M3 x 8 x 5mm, M3 x 10 x 5mm, M3 x 12 x 5mm;

Package Content: You will get 100pcs 3D printing brass nuts, super large quantity can meet your needs of connecting numerous 3D printing accessories. Each knurled brass nut measures about M3x4x5mm / M3x0.16x0.2inch, please ensure that the size of the nuts can well match your 3D printer.

Premium Material: The threaded inserts for 3D printing are made of high quality brass, extremely sturdy, not easy to break or deform, also can withstand high temperature above 300°C / 572°F. Excellent thermal conductivity also makes your 3D printer to work more effectively.

Easy to Install: The knurled brass nuts can be easily installed into the the tapered holes of 3D printers by heating, also can be molded by injection molding. The 3D printing brass nuts with full knurled patterns can perfectly match with your 3D printers. Practical nuts make your 3D printer work well.

【Self Tapping Capability】: This self tapping thread insert has self tapping capability, so you don’t need to tap in advance, you can directly screw it into the reserved hole

【Strong Tensile Strength】: This threaded insert embedment nuts has strong tensile strength and large contact area with the finished product

【Can Prevent Loosening】: This brass slotted thread inserts are easy to install, it have strong shock resistance, which can effectively prevent loosening

【Handy Tool to Install Inserts】 This heat press is a handy tool to install inserts into 3D printed parts. The iron tip heats up the brass tip and softens plastic, allowing you to install inserts into the part. Once it cools down, the nuts are fixed in place.

【Adjustable Metal Bar】 The horizontal aluminum extrusion profile is adjustable so that you can adjust the position of the soldering iron without moving it in operation, which is safer.

【Metal Handle】 The handle on the soldering iron will make it easier to press down the insert nuts into the part, especially when you need to do it repeatedly.

♛ High Quality Knurl Thread Inserts Nuts Assortment Kit

♛ Mateiral: Brass; Size include: M2 / M3 / M4

♛ Package Quantity: 250pcs - Packed in A Rugged Convenient Re-sealable Plastic Storage Case

SELF TAPPING --- Due to self-tapping ability of the threaded inserts, the base material does not have to be tapped in advance.

GOOD HOLDING POWER --- Threaded insert has a large contact area with the finished product, strong pull resistance. Strong resistance to vibration, which can prevent loosening.

SUITABLE FOR --- Thread Inserts are applicable for hard wood. Perfect for furniture, cabinets, displays, and more.

Package Includes: You will get 100 M3 inserts, threaded inserts enough for you to attach numerous 3D printed parts. Premium threaded inserts for 3D printing come in an eco-friendly plastic bag that is durable in every way.

Product Size: The brass threaded insert heat inserts measure approximately 5.7 x 4.6 cm and the special thread design makes it easier to handle. These m3 inserts 3D printing can be used extensively for injection molding for tight fixing.

Quality Materials: These double pass threaded inserts are made from high quality durable brass with rust and oxidation resistance, good thermal conductivity, rust-proof, corrosion resistant, non-toxic, acid resistant, and do not release harmful substances. The brass threaded insert embedment nuts have excellent outstanding thermal conductivity, and are very strong, hard, and threaded insert resistant to breakage or deformation to ensure you get long term use.

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

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