Pololu - Aluminum Standoff for Raspberry Pi: 11mm Length, 6mm M2.5

These hexagonal male-female aluminum standoffs are intended specifically for use with the Raspberry Pi. They keep parts spaced 11 mm apart, which is just the right height for mounting expansion boards with standard-size female headers, and they have 6mm-long M2.5 threads that are just the right size for the Raspberry Pi’s mounting holes. These standoffs are sold in packs of 4.

Raspberry Pi Accessories - Standoffs

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633132 Standoff - Aluminum Threaded (6-32; 1-1/8, 4 Pack)

Pololu - Dual TB9051FTG Motor Driver for Raspberry Pi (Assembled)

Pololu 1942 - Aluminum Standoff: 1/2 Length, 2-56 Thread, M-F (4

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

Brass Hex Standoff M2.5 Spacer Kit, 120 pcs

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

Pololu - Raspberry Pi Expansion Boards

Machine Screw: M2.5, 6mm Length, Phillips (25-pack) - Pololu

Pololu - Raspberry Pi

Pololu - Aluminum Standoff for Raspberry Pi: 18.6mm Length, 6mm M2

MakerSpot Raspberry Pi Nylon Standoff Kit M2.5 Screws

These hexagonal male-female aluminum standoffs keep parts spaced 0.25 (6 mm) apart and are great for building a multi-level robot chassis. Both ends

Aluminum Standoff: 1/4 Length, 2-56 Thread, M-F (4-Pack)