ATX Motherboard Standoff Support Spacer, Flat Bottom
Computer Repair Screw and Standoff Kit : ID 5411 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Standoff touching motherboard | Tom's Hardware Forum
STCPCSCREWKIT - StarTech.com Deluxe Assortment PC Screw Kit - Screw Nuts and Standoffs - Assortment Of 12 Common PC Case Screws - Screw kit - Screw Nuts and Standoffs - Screw kit - Office Supply Hut
ATX Motherboard Standoff Support Spacer, Threaded 6-32