1 / 7YUWEIC HN50287S M4 Heat-Set Insert Kit, 286 Pieces with 60W Iron
Pieces: The YUWEIC HN50287S heat-set threaded insert kit combines M4 inserts and fasteners with a 60W digital soldering iron for installing reusable threads in plastic. The listing describes a 286-piece assortment, with the specific component breakdown worth checking before purchase.
At a glance
- Digital temperature display and adjustable iron temperature are specified as 392–932°F / 220–450°C.
- The listing describes quick-change heat-set tips that can be switched without removing the soldering iron sleeve.
- Tweezers are intended to help handle small inserts, screws and caps, and a stand is listed for the iron.
Reference price: $33.99
Price checked: Nov 13, 2026
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Pros and cons
Pros
- Combines an iron, stand, tweezers and M4 installation components in one listed kit.
- The M4 thread size and listed insert-and-fastener quantities suit projects needing repeated M4 threaded points in plastic.
- Temperature adjustment and a digital display provide a defined operating range for heat-set installation.
Technical specifications
12 specifications| Brand | YUWEIC |
|---|---|
| Model | HN50287S |
| Thread size | M4 |
| Piece count | 286 |
| Soldering iron power | 60W |
|---|---|
| Temperature range | 392–932°F / 220–450°C |
| Dimensions listed | 27 x 15 x 3.5 centimetres |
|---|
| Material listed | Metal |
|---|---|
| Fastener type | Hex |
| Thread style | Right Hand |
| Thread coverage | Fully Threaded |
| Item diameter | 4 millimeters |
What to know before buying
Listing details to confirm
The listing is inconsistent about the kit breakdown: its title calls out M4 nuts, screws and caps, while a feature states 95 inserts, 95 screws and 95 caps plus two tips, connecting rods and tweezers, which does not clearly account for the claimed 286-piece total. Confirm the selected listing's contents and whether the iron and stand are included.
Who is it for?
A good fit for
- 3D-printing and DIY users who need M4 threaded inserts for plastic parts.
- Repair work where creating reusable threads in plastic is the goal.
- Buyers who want a digital, adjustable soldering iron bundled with insert-installation accessories.
Less suited to
- Projects that require threaded inserts in sizes other than M4.
- Buyers who need a clearly verified component-by-component count before ordering.
Customer reviews on Amazon
- 5 stars
75% 75% - 4 stars
14% 14% - 3 stars
0% 0% - 2 stars
0% 0% - 1 star
11% 11%
The supplied evidence contains aggregate ratings but no written customer-feedback summary. The overall rating distribution leans positive, while a smaller one-star share signals that experiences are not uniform. With a limited number of ratings and no comments to explain them, these figures cannot establish how the iron, M4 inserts or component quantities perform in practice.
Frequently asked questions
What thread size does this kit use?
The listed thread size is M4. The supplied details do not substantiate other insert sizes.
What soldering iron is described?
The listing specifies a 60W digital iron with adjustable temperature from 392–932°F / 220–450°C.
Are all 286 kit pieces clearly itemized?
No. The title and component breakdown do not clearly reconcile with the stated 286-piece total. Check the selected listing for the exact contents.
Can the tips be changed without removing the iron sleeve?
The listing claims quick-change tips can be switched without removing the sleeve.
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