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Loose, mismatched standoffs slow down every build — whether you’re mounting a PCB, assembling a 3D printer frame, or fabricating a custom electronics enclosure. These aluminum hex standoff spacers give you a clean, corrosion-resistant solution across six metric thread sizes, so you always have the right pillar stud on hand without digging through unsorted hardware bins.
Machined from high-strength, heat-treatable aluminum alloy and finished with a durable anodized coating, each standoff features a hexagonal profile for easy wrench grip and internal female threads for tight, vibration-resistant connections. Available in M2, M2.5, M3, M4, M5, and M6 thread diameters (approximately 0.08” to 0.24”) with lengths ranging from 5mm to 50mm (approximately 0.20” to 1.97”), manufactured to a ±0.3mm tolerance.
These standoffs are a go-to choice for PCB and electronics mounting, 3D printer and CNC frame assembly, RC model and drone builds, automotive interior fixtures, and any mechanical project where lightweight, corrosion-resistant spacing hardware is needed.
Ideal for mounting circuit boards, Raspberry Pi, Arduino, and other electronics with clean, consistent spacing that prevents short circuits and allows airflow.
Use these standoffs to assemble frame components, mount control boards, and create precise mechanical spacing in 3D printer and CNC router builds.
Lightweight aluminum construction makes these pillar studs a natural fit for drone frames, RC aircraft, and model builds where minimizing weight is critical.
Suitable for automotive interior fixtures, mold tooling, mechanical equipment assembly, and any project requiring corrosion-resistant, lightweight spacing hardware.
| Material | Aluminum Alloy (High Strength, Heat Treatable) |
|---|---|
| Available Thread Sizes | M2, M2.5, M3, M4, M5, M6 |
| Available Lengths | 5mm – 50mm (varies by thread size; see variant options) |
| Thread Type | Female (Internal Thread) |
| Shape | Hexagonal (Hex Pillar / Standoff) |
| Surface Treatment | Anodized |
| Tolerance | ±0.3mm |
| Standard | National Standard (GB) |
| Key Properties | High strength, good mechanical performance, easy to process, wear-resistant, corrosion-resistant |
These standoffs are machined from high-strength, heat-treatable aluminum alloy and finished with an anodized coating. The anodized surface provides a hard, color-fast layer that resists corrosion, scratching, and oxidation.
Thread sizes available are M2, M2.5, M3, M4, M5, and M6. Lengths range from 5mm to 50mm depending on the thread size selected. Please select your preferred Size (Thread Diameter) and Length combination from the variant options above.
These are female thread (internally threaded) standoffs. Each end has an internal thread that accepts a standard metric screw or bolt of the corresponding size. They are designed to be used as spacers between two surfaces, with screws threading into each end.
The anodized aluminum construction offers good corrosion and oxidation resistance, making these standoffs suitable for light outdoor use and under-hood automotive applications. For environments with constant salt spray or harsh chemicals, stainless steel standoffs are generally recommended instead.
These standoffs are manufactured to a tolerance of ±0.3mm, ensuring consistent dimensions and reliable fit with standard metric fasteners across all size variants.
No, this listing is for the hexagonal female thread standoffs only. Screws and nuts are not included. If you need matching metric screws, please check our other listings for compatible fasteners.
Yes. The aluminum alloy used in these standoffs has good machinability, meaning they can be drilled, cut, or otherwise modified if your project requires custom dimensions. The material holds up well against repeated assembly and disassembly without significant thread wear.
