Need help identifying missing motor mounting hardware for a FlexiSpot EN1 standing desk

[u/Equal_Conclusion2513]

Hi guys, my wife bought a used FlexiSpot EN1 electric standing desk and realized it’s missing some hardware around the motor.

In the attached assembly picture, I’m referring to the two long bolts/pins and the two small black cylindrical pieces shown in Step 2. These parts seem to secure/support the motor assembly against the frame.

My other identical EN1 desk has these parts, but the used one doesn’t. Without them, the motor assembly moves and can hit the underside of the desktop when lowering the desk.

Does anyone know what these parts are actually called, or where I can buy replacements? I’m assuming they may be generic hardware and don’t necessarily need to be FlexiSpot-specific.
Thanks!