Search  for anything...

Yaocom 300 Pcs M4 Threaded Inserts M4 x D6 x L6 Heat Set Inserts

Based on 283 reviews
Condition: New
Checking for the best price...
$14.99
Save $11.00 was $25.99

Buy Now, Pay Later


As low as $3 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Oct 30
Order within 8 hours and 1 minute

Available payment plans shown during checkout

Protect Your Purchase

Easy claims online, fast replacements, no fees

Checking for protection plans...

At a glance

Condition
New
Size
M4 X D6 X L6
Number of Items
300
Model
XIE-Yaocom-2417
Weight
6.72 oz
Color
Gold
Material
Brass

Features 5

  • Bulk Package: you will get 300 pcs M4 threaded inserts that provides sufficient quantity to cater to your daily needs; Whether it's for 3D printing, computer products, electronic items, or circuit board fixing, our bulk package offers ample supply
  • Quality Brass Material: our M4 heat set inserts are made from quality brass; They exhibit robustness, a smooth surface, no burrs, and good mechanical properties which make them not easy to deform, ensuring a long lasting use
  • Easy Installation: experience ease and efficiency with our brass threaded inserts that are suitable for installation by ultrasonic or heat into the plastic matrix; No need for countersunk holes or countersunk holes, making the installation process easier
  • Precision Construction: our 3d printer brass inserts knurled feature precise construction; Each threaded insert comes with clear threads, uniform force and spacing, offering adequate torsion and tension for secure fixation

Specs 30

Material Brass
Fastener Type Insert
Thread Size M4 x 6mm x 6mm
Exterior Finish Brass
Color Gold
Thread Type Iso Metric
Inside Thread Size M4
Thread Style Left Hand

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


Strong, reliable fastener for 3d prints.
Size: M4 X D6 X L6 Number of Items: 300
These fasteners add a strong connection point for any M4 fastener. I have ordered 4 or 5 boxes with no failures or deformities. As long as your model has appropriatly sized holes for the fasteners, these inserts will work perfectly. Other companies have sent me incorrect sizes for repeat orders, but I have had consistent service with this brand. And you can't beat the price! ... show more
Reviewed in the United States on July 8, 2026 by Jordan Shropshire

Great inserts
Size: M3 X D5 X L4 Number of Items: 500
Work great, sized correctly, I always return to this brand/product, unless I somehow come across a "better" one, I will continue using these!
Reviewed in the United States on March 23, 2026 by Max

Good high quality
Size: M4 X D6 X L6 Number of Items: 300
This was my first use of heat inserts. Not only were these easy to install, but the screws had no issues going into them. If I need more I will be buying these again.
Reviewed in the United States on May 19, 2026 by Easy

Work well for 3D prototypes
Size: M6 X D8 X L8 Number of Items: 100
Consistent quality. Works well.
Reviewed in the United States on June 17, 2026 by buyer-person

Good purchase
Size: M6 X D8 X L8 Number of Items: 100
Does it’s job great, was able to insert into a 3d print without issue
Reviewed in the United States on July 18, 2026 by Eric Arone

Good product
Size: M3 X D4.5 X L5 Number of Items: 300
Works perfectly. I will purchase more in the future..a+++
Reviewed in the United States on June 7, 2026 by jeffrey mcmahon

Perfect fit
Size: M6 X D8 X L8 Number of Items: 100
I use these for my small business. They are easy to install with my heat set press and are very durable. They fit the hardware I use perfectly. Highly recommended!
Reviewed in the United States on July 22, 2026 by Aaron F.

A good resupply pack.
Size: M3 X D5 X L4 Number of Items: 300
Lots of the most common M3 inserts a a decent number of the less common sizes. The double chevron design works great. The packaging keeps everything sorted.
Reviewed in the United States on July 18, 2026 by Donald B. Udel
Checking for best price...