2-56 Male-Female Threaded 0.5 in. Long Hex Aluminum Standoff - AndyMark, Inc

This 0.5 in. long standoff allows you to place two components 0.5 in. apart. This standoff has two threaded ends: one male, and one female.

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

Pololu - Aluminum Standoff: 3/4 Length, 2-56 Thread, M-F (4-Pack)

Model Number: 142408RFA Item Package Length: 4.099999995818 Item Package Width: 4.099999995818 Item Package Height: 0.49999999949

Small Parts 142408RFA Aluminum Female Threaded Round Standoff, 1/4 OD, 1-1/2 Length, 8-32 Thread Size (Pack of 10)

Metric Standoffs - Grainger Industrial Supply

A female threaded standoff helps to position components in subassemblies where the separate components both have male threads.

10-32 Threaded 0.875 in. Long 0.3125 in. Dia. Standoff

0.5 in. Hex Aluminum Spacer Stock - AndyMark, Inc

56 Tooth 20 DP 0.5 in. Hex Bore Aluminum Gear - AndyMark, Inc

Female-Female Standoff, Hex, Unplated, Aluminum, #6-32, 0.5

Package length:1.27 cm Package width:7.62 cm Package height:7.62 cm Product Type:MECHANICAL_FASTENERS

Small Parts 100604HM303 18-8 Stainless Steel Male-Female Threaded Hex Standoff, 3/16 Hex Size, 3/8 Length, 4-40 Thread Size (Pack of 10)

These 5/16-long hexagonal female-female aluminum standoffs keep parts spaced 0.313 inches (7.9 mm) apart. They are like elongated, 3/16″-wide hex

Pololu - Aluminum Standoff: 5/16 Length, 2-56 Thread, F-F (4-Pack)

Male-Female Standoff, Hex, Unplated, Stainless Steel, #2-56, 1-1/2