Metric Socket Button Head Screw Kits, 170-2440 Piece M2-M6 Assortments for Electronics and 3D Prints
These metric socket button head screw kits provide compact fasteners for 3D printing, electronics, robotics, RC models and precision DIY assemblies. Rounded low-profile heads create a neat finish, while clean standard threads and included nuts, washers and lock washers on the documented mixed kit support complete small-component fastening.
Choose M2 through M6 single-size or mixed assortments in black alloy steel or selected stainless-steel configurations, with counts from 170 to 2,440 pieces. The documented 2,000-piece M2–M5 kit uses grade 10.9 black alloy steel, covers sixteen diameter-and-length combinations and includes matching hex keys. These small screws are not for heavy-duty or large mechanical work.
Specifications
- Fastener: Socket button head screw
- Metric range: M2 to M6
- Pack range: 170 to 2440 pieces
- Materials: Alloy steel or stainless steel by variant
- Colors: Black or silver
- Documented kit: 2000 pieces
- Documented grade: 10.9 alloy steel
- Documented range: M2 to M5
- Documented lengths: 4 to 20 mm by diameter
- Included: Nuts washers lock washers and hex keys on documented kit
Frequently Asked Questions
Which sizes and counts are available?
Variants cover M2–M6 hardware in single-size and mixed kits from 170 to 2,440 pieces.
What comes in the 2,000-piece M2–M5 set?
It includes grade 10.9 screws in sixteen size combinations plus balanced nuts, washers, lock washers and hex keys.
Are stainless steel options available?
Yes. Several variants are explicitly labeled stainless steel; others use black alloy steel.
Can these screws be used for heavy machinery?
No. The source describes them as small precision hardware and excludes heavy-duty or large mechanical use.