Ktehloy
361Pcs M3 Threaded Inserts with Heat Set Insert Tips & Hex Socket Head Cap Bolt Set, Brass Heat Set Insert for Plastic and 3D Printing Components
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.
Bottom line: The 361Pcs M3 Threaded Inserts with Heat Set Insert Tips & Hex Socket Head Cap Bolt Set, Brass Heat Set Insert for Plastic and 3D Printing Components is a category leader on buyer feedback in the tools & maintenance category, priced around $14.98, rated 4.8★ across 594 verified Amazon reviews. A confident buy for most shoppers in this category.
Ktehloy 361Pcs M3 Threaded Inserts with Heat Set Insert Tips & Hex Socket Head Cap Bolt Set, Brass Heat Set Insert for Plastic and 3D Printing Components
SpecPicks Verdict
SpecPicks classifies 361Pcs M3 Threaded Inserts with Heat Set Insert Tips & Hex Socket… as a category leader on buyer feedback in the tools & maintenance category, based on 594 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Ktehloy's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for tools & maintenance of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.8★ average across customer reviews
- ✓ Backed by Ktehloy's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- 【Package Content】- The package includes 361Pcs M3 Threaded Inserts with Heat Set Insert Tips & amp; Hex Socket Head Cap Bolt Set. With a large quantity available, it meets the needs for connecting numerous 3D printing accessories.
- 【High-Quality Threaded Inserts】- Crafted from top-tier brass materials, these threaded inserts boast outstanding thermal conductivity, corrosion resistance, and durability. They exhibit remarkable resistance against breakage and deformation. Withstanding temperatures exceeding 300°C / 572°F, they easily endure the harsh heat generated during plastic thermal shaping processes.
- 【Precision Craftsmanship】- High-precision and clear threading ensures stability and reliability, preventing thread slippage during rotation. The 45-degree angled knurling significantly enhances torque resistance and tensile strength, ensuring a stronger fastening. The embedded nuts feature guiding elements, eliminating the need for countersinking or recessing, making your work more convenient and efficient.
- 【Easy to Use】- Brass threaded inserts can be installed into components of a 3D printer through heating or ultrasonic methods, or molded during the injection process. They are also suitable for circuit board assembly and the electronics field. With a common soldering iron, you can easily place them into the holes of 3D prints.
- 【Wide Application】 - These inserts are designed for use with all thermoplastics, including materials like PLA, PETG, ABS, PPS, PP, and others. Whether installing them in 3D printed objects, injection-molded plastic parts, automotive plastic casings, or laptop shells, these inserts offer reliable and durable solutions.
Full Specifications
| Size | M3 |
|---|---|
| Brand | Ktehloy |
| Color | golden |
| Model | 361Pcs M3 Threaded Inserts Ket |
| Material | Brass, Carbon Steel |
| Set Name | M3 Threaded Inserts Ket (361 Piece) |
| Size Name | M3 |
| Item Shape | Hexagonal |
| Part Number | 361Pcs M3 Threaded Inserts Ket |
| Thread Size | M3 |
| Finish Types | Brass |
| Fastener Type | Insert |
| Material Type | Brass, Carbon Steel |
| Item Dimensions | 5.91 x 4.17 x 0.62 inches |
Ready to buy?
361Pcs M3 Threaded Inserts with Heat Set Insert Tips & Hex Socket Head Cap Bolt Set, Brass Heat Set Insert for Plastic and 3D Printing Components is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.
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