Brass M2.5 Standoffs for Pi HATs - Black Plated - Pack of 2

These go to eleven. 11 millimeters that is!

Adafruit 16-Channel PWM / Servo HAT for Raspberry Pi - Mini Kit : ID 2327 : Adafruit Industries, Unique & fun DIY electronics and kits

Brass M2.5 Standoffs 16mm tall - Black Plated - 2 Pack

HanTof Raspberry Pi Installation Tool 160 Pcs/Lot M2.5 Series Hex Brass Spacer/Standoff + Nuts + Screws w/Storage Case Raspberry Pi 3 Model B+(Plus) / 3B / Zero W Accessories Kit :

Adafruit PiTFT 2.2 HAT Mini Kit - 320x240 2.2 TFT - No Touch : ID 2315 : Adafruit Industries, Unique & fun DIY electronics and kits

Sixfab Indoor Project Enclosure for Raspberry Pi - Sixfab

Brass M2.5 11mm Standoffs for Pi HATs - Black Plated - Pack of 2

Adafruit Brass M2.5 Standoffs 16mm tall - Black Plated - Pack of 2 [ADA2337]

Nylon 12mm M2.5 Standoff Set - Pack of 4

Fixings The Pi Hut

Brass 12mm Standoff Set for Pi HATs - Pack of 4