Pololu - Aluminum Standoff: 3/4 Length, 4-40 Thread, M-F (4-Pack)

These hexagonal male-female aluminum standoffs keep parts spaced 0.75" (19 mm) apart and are great for building a multi-level robot chassis. Both ends of these 3/16"-wide standoffs have 4-40 threads. The standoffs are sold in packs of 4.
These hexagonal male-female aluminum standoffs keep parts spaced 0.75 (19 mm) apart and are great for building a multi-level robot chassis. Both ends of these 3/16-wide standoffs have 4-40 threads. The standoffs are sold in packs of 4.

Female To Female Aluminum Hex Standoff (pack Of 4) at Rs 124.99, Hexagonal Standoff

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

Pololu 1945 - Aluminum Standoff: 1-1/4 Length, 2-56 Thread, M-F (4-Pack)

Hex Standoff Threaded - #4-40, Aluminum, 2.375in. (60.33mm) - PRT-15432 - SparkFun Electronics

These hexagonal male-female aluminum standoffs keep parts spaced 1.0 (25 mm) apart and are great for building a multi-level robot chassis. Both ends

Pololu - Aluminum Standoff: 1 Length, 4-40 Thread, M-F (4-Pack)

M3 x 4mm+6mm Hex Male-Female Standoffs,Male Thread Length 6mm,Brass,Pack 50-Piece: : Industrial & Scientific

Pololu - Claire's dead reckoning robot

Aluminum Standoff: 3/4 Length, 4-40 Thread, M-F (4-Pack) at MG Super Labs India

Machine Hex Nut: #2-56 (25-pack) - Robot Gear Australia

Aluminum Standoff: 3/4 Length, 4-40 Thread, M-F (4-Pack)

Pololu 1949 - Aluminum Standoff: 3/4 Length, 4-40 Thread, M-F (4-Pack)

Pololu - Aluminum Standoff 1.25 x 0.25 4-40 M-F 4-Pack

Aluminium Stand-off / Spacer Range - Proto-PIC

Standoff Spacer Stud Fastener Pcb Spacer Standoff 3mm Hole - 4-40 Hex Male Female - Aliexpress

Pololu 1943 - Aluminum Standoff: 3/4 Length, 2-56 Thread, M-F (4-Pack) - Kamami on-line store

Aluminum Standoff: 3/4 Length, 4-40 Thread, M-F (4-Pack)