This bracket fits the 64x32 RGB LED Matrix - 6mm pitch from Adafruit.

I am using this display with an Adafruit Matrix Portal, but wanted to move the board further inside and needed a harness to hold it while connecting it to the HUB 75 plug using jumper wires.

Adafruit Matrix Portal - CircuitPython Powered Internet Display

I will be hanging it on the wall to replace my existing kitchen clock. 8 x M3 10mm screws are required to connect the brackets to the display.

In order to protect and diffuse the LEDs, I ordered the Black LED Diffusion Acrylic Panel from tapplastics.com Dimensions: 385mm x 190mm x 13mm / 15.2” x 7.5” x 0.5” I used simple black electric tape to secure the acrylic to the front face.

The OnShape project used to generate these STLs is available here.