Best Plastic Threaded Inserts in 2026
Daisy
Last Updated: Feb 7, 2026
Daisy
Last Updated: Feb 7, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| tanus | 9.70 | ✅ | ✅ | ✅ |
EASY TO INSTALL: These self-tapping thread inserts has self-tapping ability, does not need to be pre-tapped, can be directly used by the installation tool to screw it into a specific hole.
SAFE: Threaded Insert has the ability of strong vibration resistance, which can prevent loose.Can be used in many different places.
HELP TO MAINTENANCE: A damaged screw hole can be used as normal after installed a thread insert.
SIZE: Inner Thread Size: M8(diameter) x 1.25(pitch), Outer Thread Size: M12(diameter) x 1.5(pitch), Length: 15mm, Drilling Diameter: 10.6~10.8mm(plastic); 11~11.2mm(aluminum alloy); 11.2~11.4mm(cast iron), Min. Drilling Depth: 18mm.
WIDELY APPLICATION: It is widely used in automobile industry, rail car industry, ship industry, household appliances and many other places.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| XINMKA | 6.47 | ✅ | ✅ | ✅ |
1.HIGH QUALITY: These self -tapping thread inserts all made of high quality stainless steel, it is of high hardness and low abrasion.
2.FEATURE: These threaded inserts has the ability of strong vibration resistance, it is resistant to vibration to avoid loosening. Greatly improve strength and stability of screws connection.
3.GOOD CHARACTER: Solid, is not easy to slick, deep thread, uniform force, no burr in thread, clear and tidy. A damaged screw hole can be used as normal after installed a thread insert
4.EASY TO USE: Easy and quick to install with only one assembly tool. It can also repair the damaged thread by install it into thread hole.
5.APPLICATION: It enjoys a reputation in manufacturing fields such as automobiles industry, rail car industry, ship industry, household appliances and many other places.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| eboxer | 9.60 | ✅ | ✅ | ✅ |
【Easy To Use】 The self tapping screw sleeve does not need to be tapped in advance, and can be directly screwed into the specific hole reserved for the base material. For the female thread of the broken tooth, the same screw as the original can be used, which is economical and beautiful, and can be added to new products.
【Easy To Maintenance】 Easy to maintenance, install a thread insert into a damage screw hole, then the screw hole can be used as normal, in order to avoid workpiece loss.
【Excellent Performance】 The self tapping screw sleeve can solve the problem of thread crushing and effectively improve the bonding strength with the base metal. The contact area is large and can withstand strong tension. Besides, they are used in low strength materials such as aluminum, can avoid thread damage and get a good connection performance, to enhance connection strength and improve connection condition.
【Improve The Life Of Parts】 Used for parts that requires frequent removing, it can greatly improve service life and wear resistance of screw thread.
【Prevent Screw From Getting Loose】 It can prevent screw from getting loose,especially used for products requiring high coefficient of insurance.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Naideys | 9.85 | ✅ | ✅ | ✅ |
【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
【Improve the Thread Strength of the New Product】: This self tapping thread slotted inserts can effectively improve the thread strength of the new product
【7 Types, A Total of 50】: This brass threaded inserts has 7 commonly used types, a total of 50, which can be used for a long time
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
THREADED INSERTS FOR PLASTIC – E-Z LOK Thread Inserts for plastic. Available in brass threaded inserts and stainless steel threaded inserts. Install cold.
EASY INSTALLATION – A slotted design allows for cold installation of these metal threaded inserts with no heating required, eliminating the need to chase threads after molding.
FOR USE WITH APPLICATIONS – The threaded inserts for plastic are designed for post-molding installation in either thermoset plastics, thermoplastics, or 3D printed parts.
AVAILABLE IN 3 STYLES – Available in flush threaded inserts, flanged threaded inserts, and reverse slot threaded inserts.
STRONG THREADS MADE EASY – All three types of thread inserts press into place for fast, easy installation.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| IndustrialSupplies | 9.47 | ❌ | ❌ | ❌ |
THREADED INSERTS FOR PLASTIC – E-Z LOK Thread Inserts for plastic. Available in brass threaded inserts and stainless steel threaded inserts. Install cold.
EASY INSTALLATION – A slotted design allows for cold installation of these metal threaded inserts with no heating required, eliminating the need to chase threads after molding.
FOR USE WITH APPLICATIONS – The threaded inserts for plastic are designed for post-molding installation in either thermoset plastics, thermoplastics, or 3D printed parts.
AVAILABLE IN 3 STYLES – Available in flush threaded inserts, flanged threaded inserts, and reverse slot threaded inserts.
STRONG THREADS MADE EASY – All three types of thread inserts press into place for fast, easy installation.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
THREADED INSERTS FOR PLASTIC – E-Z LOK Thread Inserts for plastic. Available in brass threaded inserts and stainless steel threaded inserts. Install cold.
EASY INSTALLATION – A slotted design allows for cold installation of these metal threaded inserts with no heating required, eliminating the need to chase threads after molding.
FOR USE WITH APPLICATIONS – The threaded inserts for plastic are designed for post-molding installation in either thermoset plastics, thermoplastics, or 3D printed parts.
AVAILABLE IN 3 STYLES – Available in flush threaded inserts, flanged threaded inserts, and reverse slot threaded inserts.
STRONG THREADS MADE EASY – All three types of thread inserts press into place for fast, easy installation.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| OKBYY | 9.57 | ✅ | ✅ | ✅ |
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.
ADVANTAGE --- There is no clearance between the thread inserts and base material, and the base material also has good air tightness if it contains bubbles.
EASY TO INSTALL --- Easy and quick to install - only need one assembly tool.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Astyer-X | 9.62 | ❌ | ❌ | ❌ |
These self -tapping thread inserts can also repair the damaged thread by install it into thread hole.
Large contact surface with finished product, easy and quick to install with only one assembly tool.
It has the ability of strong vibration resistance, which can prevent loose strong tensile strength, helping save cost.
The self-tapping screw installation does not need to be pre-tapped, it can be directly used by the installation tool to screw it into a specific hole reserved by the parent material.
It is widely used in automobile industry, rail car industry, ship industry, household appliances, construction machinery.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| E-Z Lok | 3 |
| Ashata | 1 |
| Ftvogue | 1 |
| Hilitand | 1 |
| Mlmlh | 1 |
| Xinmka | 1 |
| Yosoo Health Gear | 1 |
We've carried out a comprehensive analysis of 104 reviews on threaded inserts, using our selection criteria to identify the best options in the fasteners. Our findings reveal that most customers typically select threaded inserts priced around $14.32, with top brands including sprite science, hilitchi and e-z lok and reegoo
Our team of expert editors reviewed these high-quality items and handpicked the top 9 threaded inserts for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the fasteners category. These include up2u, hilitchi and amazon.com and reegoo us .
We are dedicated to assisting our users in finding the right inserts Products based on their needs, saving them considerable time when choosing which threaded inserts to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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