A
Anonymous
Mar 27, 2026
Rating: 4/5
Good but tight
Screws are good quality but some nuts were hard to thread. Still usable for most projects.
Description
Carbon Steel Black Countersunk Cross Screw and Nut Combo Set Complete Flat Head Screws Caps Flat/Spring Washers M3 M4
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Carbon Steel |
| Surface Treatment | Black Oxide Coated |
| Head Type | Countersunk Flat Head |
| Drive Style | Phillips Cross |
| Metric Sizes | M3, M4 |
| Piece Count | 1200 Pieces |
| Kit Contents | Screws, Nuts, Flat Washers, Spring Washers |
| Strength Grade | 4.8 |
| Package Type | Plastic Storage Box |
| Item Weight | 550 Grams |
5 reviews
A
Anonymous
Mar 24, 2026
Rating: 5/5
Excellent Kit
Very comprehensive set for my 3D printer repairs. The organization box makes finding the right size easy.
A
Anonymous
Mar 11, 2026
Rating: 3/5
Case cracked
Hardware is fine but the plastic box arrived with a crack. Functionality is not affected though.
A
Anonymous
Mar 11, 2026
Rating: 5/5
Great Value
Can't beat the price for this amount of hardware. I use these for general electronics assembly.
A
Anonymous
Feb 12, 2026
Rating: 5/5
Perfect Fit
M3 and M4 sizes are exactly what I needed for electronics. The black finish looks professional.
5 FAQ
Q: Are multiple lengths included?
A: Yes, various lengths are included for both M3 and M4 sizes.
Q: Is the box compartmentalized?
A: Yes, the box has separate sections for each component type.
Q: Is there a warranty?
A: Yes, we offer a 30-day return policy for defects.
Q: Is this stainless steel?
A: No, this is carbon steel with a black coating.
Q: Will these rust outside?
A: Carbon steel can rust if exposed to moisture without protection.
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