Z390 Aorus Pro Wifi high end motherboard, LGA 1115 x socket, empty CPU slot with plastic lid, socket cover on, product shot, top view, from above, pc Stock Photo - Alamy
ATX Motherboard Standoff Support Spacer, Threaded 6-32
AliExpress
NEW Lot 30: Snap-In Clip Plastic Standoff/Screw for PC ATX Motherboard – irdrive.com
Why does a laptop motherboard have plastic stuck to it? - TR Forums
Can this plastic piece be removed from the motherboard without damaging it? : r/gigabytegaming