#6-32 x 1/2" x 1/4" Nylon Plastic Coarse Threaded Spacers SPCR-149 (12 pcs.)

Diameter: #6
Diameter 2: 1/4"
Length: 1/2"
Material: Nylon
Thread Size: 32 (Coarse)
Style: Threaded
Type: Spacer

Box of 12.

A spacer is generally something used to create a space between two objects, often to properly position them.