SPACER, NYLON, M4X9, PK50; External Diameter: 8.2mm; External Length / Height: 9mm; Thread Size Metric: M4; Materia...
The 164 series insulators from All Thread are nylon 6.6 machine screw insulators. These insulators isolate metal screws.
Newark:
# ALLTHREAD 164004009 SPACER, NYLON, M4X9, PK50