Aluminum Spacer 5.1 x 10 x 20mm (ID x OD x Height)
Part number: 51MMX10MMX20MMBreadboards, PCBs & Enclosures
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Prices updated: 14 Oct 2026
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About this product
A round aluminum spacer with a 5.1mm inner diameter, 10mm outer diameter and 20mm height, used to mount PCBs, panels and modules with a fixed gap. Select a screw that fits the 5.1mm bore.
Specifications
- Inner diameter
- 5.1mm
- Outer diameter
- 10mm
- Height
- 20mm
- Material
- Aluminum
Frequently asked questions
What screw should I use with this spacer?
Choose a screw whose diameter passes through the 5.1mm bore without binding. Tighten gently to avoid cracking the board or deforming the spacer.
Is aluminum spacer safe to use near live circuits?
No, aluminum conducts electricity, so it can short traces or connect ground planes together. Use insulating washers or nylon spacers where the board must stay electrically isolated.
