M3 Round Aluminum Standoff Spacer (OD: 5mm, Length: 28mm)

Product Description

The M3 Round Aluminum Standoff Spacer 5x28mm is a lightweight, high-strength hardware component essential for custom 3D printer builds, CNC machinery, and precise electronics mounting. With an outer diameter of 5mm and an exact length of 28mm, this rigid aluminum rod is perfectly sized to separate, mount, or structurally support components that utilize standard M3 metric hardware.

Whether you are assembling a complex Voron Trident gantry system, mounting custom circuit boards inside an electronics control box, or creating rigid separation for a laser engraver’s chassis, these aluminum spacers provide unmatched mechanical stability. Unlike plastic or nylon standoffs, aluminum will not warp, melt, or compress under high temperatures or heavy tension. This makes them the ideal, reliable choice for heated 3D printer chambers and high-vibration CNC environments where precision is critical.

Key Features

• Precise Dimensions: 5mm Outer Diameter (OD) and 28mm Length (L), engineered for tight-tolerance mechanical assemblies.

• M3 Compatibility: Perfectly sized inner diameter allows standard M3 screws to pass through smoothly for secure mounting.

• Premium Aluminum: Lightweight yet highly rigid, offering superior structural support compared to printed or nylon standoffs.

• Thermal Resistance: Will not deform, soften, or melt inside heated 3D printer enclosures (perfect for ABS/PC setups).

• Corrosion Resistant: Smooth, professional finish that prevents oxidation in humid workshop conditions.

Applications

• Gantry, idler, and toolhead assemblies for custom 3D printers, including the Voron Trident

• Mounting PCBs, power supplies, and stepper drivers inside CNC electronics enclosures

• Spacing and separating acrylic or metal plates on DIY laser engravers

• General workshop robotics and mechanical prototyping