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Adafruit Swirly Aluminum Mounting Grid for 0.1" Spaced PCBs

We have ✅ 2 available of the AF-5774 in our Sydney warehouse. An extra 21 units available with a short lead time.

Express post delivery (2-5 business days)

The Adafruit Swirly Aluminum Mounting Grid provides a mechanical substrate for mounting small microcontroller boards, sensors, and Feathers that use STEMMA QT plug-and-play connections. When you're snapping boards together with I2C cables instead of using a breadboard, this grid gives your project a solid, organised base.

Made from a single-sided aluminium-core PCB (no copper — just aluminium with black solder mask and white silkscreen), the grid features holes and slots on a 0.1" spacing pattern. The aluminium is easy to cut, drill, machine, or bend for custom configurations.

Key Features

  • 0.1" Grid Pattern – Holes and slots every 0.2" on a 0.6" × 0.6" square grid
  • Drill Holes – 2.54 mm (0.1") diameter
  • Slots – 2.75 × 7.5 mm (0.11" × 0.3")
  • Aluminium Core – Sturdy, easy to cut/drill/machine/bend
  • Black Solder Mask + Silkscreen – Clean, professional appearance

Ideal For

  • Mounting STEMMA QT sensor and board assemblies
  • Organising multi-board Feather projects
  • Creating a mechanical base for breadboard-free builds
  • Custom enclosure and project box mounting

Package Contents

  • 1× Swirly aluminium mounting grid
Note: The aluminium is electrically and thermally conductive. Use caution with metal screws unless you intentionally want the grid to act as a ground plane. Mounting hardware not included.

The Adafruit Swirly Aluminum Mounting Grid for 0.1" Spaced PCBs appears in the following collections:

SKU AF-5774