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E-Z LOK Threaded Insert for Plastic Flush Brass Thread Inserts 1/4-20 Pack of 25

4.7 4.7 out of 5 stars 37 ratings
$8.00
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1/4-20 Pack of 25
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Purchase options and add-ons

Material Brass
Fastener Type Push-In
Thread Size 1/4"-20
Exterior Finish Plain
Metal Type Brass

About this item

  • 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.
› See more product details

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Frequently bought together

E-Z LOK Threaded Insert for Plastic Flush Brass Thread Inserts 1/4-20 Pack of 25
$8.00
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E-Z LOK Threaded Insert for Plastic Flush Brass Thread Inserts M5-0.8 Pack of 25
$8.51 ($0.34/Count)
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From the manufacturer

Threaded Insert for Plastic - Flush - Brass and Stainless
Threaded Insert for Plastic - Flush - Brass and Stainless
Threaded Insert for Plastic - Flush - Brass and Stainless
Drive inserts
Drive inserts

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E-Z LOK Threaded Insert for Plastic Flush Brass Thread Inserts 1/4-20 Pack of 25

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Product Description

E-Z Press Threaded Inserts for Plastic

E-Z LOK Threaded Inserts for plastic offer superior holding power. The brass thread inserts and stainless steel thread inserts are designed for post-molding installation for putting machine threads in either thermoset plastics, thermoplastics, or 3D printed parts. A slotted design allows for cold installation of these metal thread inserts with no heating required, eliminating the need to chase threads after installation. Plus, it reduces the costs of moldings and reduces rejected waste. Available in 3 styles: flush threaded inserts, flanged threaded inserts, and reverse slot threaded inserts. All three types press into place for fast, easy installation.

Features

  • Inserts install cold - no heating required
  • Eliminate the need to chase threads after molding
  • Reduce cost and waste
  • Install properly without a precise hole depth

WARNING:

CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

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E-Z LOK Threaded Insert for Plastic Flush Brass Thread Inserts 1/4-20 Pack of 25
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E-Z Lok Threaded Insert, Zinc, Hex-Flanged, #10-32 Internal Threads, 20mm Length (Pack of 25)
E-Z Lok Threaded Insert, Zinc, Hex-Flanged, #10-32 Internal Threads, 20mm Length (Pack of 25)
Details
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Price$8.00$9.40$11.75-5% $20.85
Typical: $21.91		$20.23$15.99
Delivery
Get it as soon as Thursday, May 9
Get it as soon as Thursday, May 9
Get it May 8 - 9
Get it May 8 - 9
Get it as soon as Thursday, May 9
Get it as soon as Thursday, May 9
Customer Ratings
4.74.7 out of 5 stars37
4.94.9 out of 5 stars11
5.05.0 out of 5 stars2
5.05.0 out of 5 stars20
4.74.7 out of 5 stars37
4.64.6 out of 5 stars3,398
Sold By
Amazon.com
Amazon.com
IndustrialSupplies
KHC Shop
Amazon.com
E-Z LOK
material
Brass
Brass
Brass
Brass
Brass
Zinc
size
1/4"
—
Pack of 25
10-24 (Pack of 25)
—
Hex"
thread size
1/4"-20
1/4"-20
#0-80
1/4"-20
#8-32
#10-32
thread style
Right Hand
Right Hand
Right Hand
Right Hand
Right Hand
Right Hand
thread coverage
Fully Threaded
Fully Threaded
Fully Threaded
Fully Threaded
Fully Threaded
Fully Threaded
fastener type
Push-In
Push-In
Push-In
Push-In
Push-In
Tapping
drive system
Slotted
Slotted
Slotted
Slotted
Slotted
External Hex
metal type
Brass
Brass
Brass
Brass
Brass
Zinc
exterior finish
Plain
Brass
Plain
Plain
Plain
Zinc

Customer reviews

4.7 out of 5 stars
4.7 out of 5
37 global ratings

Customers say

Customers like the quality of the threaded inserts, mentioning that they are strong and hold in place extremely well. That said, opinions are mixed on performance.

AI-generated from the text of customer reviews

3 customers mention3 positive0 negative

Customers are satisfied with the quality of the threaded inserts. They mention that they are strong, hold in place extremely well, and are of good quality.

"Used them to support my car amp. Great product." Read more

"These are very good quality threaded inserts and these work perfectly with my PETG 3D prints...." Read more

"They are strong, they hold in place extremely well.Due to the design, it can be difficult to install perfectly aligned in plastic...." Read more

3 customers mention2 positive1 negative

Customers are mixed about the performance of the nuts. Some mention that they work great in 3D prints and threaded inserts, while others say that they didn't work as described and pulled out very easily.

"These are very good quality threaded inserts and these work perfectly with my PETG 3D prints...." Read more

"These items are as described by the mfr. However, they totally failed in my application as threaded inserts for HDPE plastic...." Read more

"I use these in 3D prints and they work great, I use a 6.5 mm hole but your printer may behave differently but once you get the size dialed in these..." Read more

Top reviews from the United States

Daryl Hockaday
5.0 out of 5 stars Does what it's supposed to do!
Reviewed in the United States on April 10, 2024
Style: 10-24 Pack of 25Verified Purchase
Used them to support my car amp. Great product.
Helpful
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APClam
5.0 out of 5 stars These work great with PETG prints!
Reviewed in the United States on October 2, 2021
Verified Purchase
These are very good quality threaded inserts and these work perfectly with my PETG 3D prints. Just make sure to get an appropriately sized reamer for the recommended size hole and ream the hole to spec before trying to press fit the insert. I’ve used dozens of these now and the way they expand when the fastener is screwed down into gives them an incredibly strong hold. I’ve found that adding a tiny drop of light machine oil onto the fastener helps to eliminate the squeaking sound you might otherwise hear when tightening it down. Also makes it easier to tighten properly. Highly recommend!
2 people found this helpful
Helpful
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Scott L Morris
5.0 out of 5 stars Fit snugly in a 3D printed 6.5 mm hole
Reviewed in the United States on March 21, 2023
Verified Purchase
I use these in 3D prints and they work great, I use a 6.5 mm hole but your printer may behave differently but once you get the size dialed in these are great.
One person found this helpful
Helpful
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Robot Power
3.0 out of 5 stars Item as described but did not work in HDPE plastic
Reviewed in the United States on November 2, 2022
Style: 8-32 Pack of 100Verified Purchase
These items are as described by the mfr. However, they totally failed in my application as threaded inserts for HDPE plastic. I made sure the pilot hole dimensions were exact with my CNC mill and pressed them in with a proper arbor press.

These inserts pulled out very easily. I'm thinking perhaps the split being on the bottom side actually pushed them out as the screw was inserted because they spread most at the bottom. Don't know for sure but they didn't work and pulled out very easily in my application.

I have used the flanged top models with the split at the top. Those ones with the same mounting hole dimensions locked in like a rock and cannot be pulled out without destroying either the plastic or the insert. So they work properly.

In the correct material (wood?) I assume they will work but they didn't work well for me hence three stars.
4 people found this helpful
Helpful
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prime numbers
5.0 out of 5 stars Five Stars
Reviewed in the United States on May 25, 2018
Verified Purchase
Expensive but do the job
Helpful
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Matthew
4.0 out of 5 stars If you REALLY need tiny size, these are fantastic
Reviewed in the United States on November 23, 2021
Verified Purchase
They are strong, they hold in place extremely well.
Due to the design, it can be difficult to install perfectly aligned in plastic. I would recommend seeking out the correct installation tool rather than trying to 'make do' with a soldering iron.
Due to the design, I would suggest these are better for fit and forget installs, rather than end user, as the screws when turned are difficult to get it, squeak, and potentially can end up cracking plastic if not careful. These seem to be intended for locking the screws in place, as well as the part itself.

Do I recommend them? Yes. Just be sure you need these and what they are used for.
Helpful
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DAC
5.0 out of 5 stars Perfect!
Reviewed in the United States on February 24, 2022
Style: 8-32 Pack of 100Verified Purchase
This insert was just what I needed to convert an electrical box that had no threads into a perfect method to mount my sconce lighting. Tight fit into pre-drilled holes and created a strong hold for the lighting mount. I was concerned that these inserts would not be strong enough to do the job, but I am very happy with the results. There is no way these will ever come loose.
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Top reviews from other countries

Pete
5.0 out of 5 stars Saved me buying a new projector
Reviewed in Canada on February 24, 2024
Style: 1/4-20 Pack of 25Verified Purchase
I bought a projector and its tripod mount didn't fit my tripod so I had to "jury-rig" the projector with this nutsert. With some finagling, some drilling and gluing, it worked like a charm.
It saved me having to buy another projector!
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