Best Metric Press In Inserts in 2026

✅【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

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.

【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.

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.

【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.

M3 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 or Prusa. With the help of heat from a soldering iron or ultrasonic, the insert nuts are simply embedded in a blind- or through hole

FIXED HOLD WITH EASY APPLICATION: Thanks to the geometry of the threaded sleeve, the threaded sleeve holds it firmly in the pressure part. The opposing spiral-shaped knurled nuts ensure a balanced high tightening and loosening torque, as well as a high tightening force. The guide has made insertion much easier

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