Radium Insulating phenolic Washer M8

Radium Engineering  press-fit spacers and washers are used with many Radium Engineering kits for thermally isolating the fuel rail from the engine. 

WASHER SPECIFICATIONS:
Outer Diameter: 12.7mm
Inner Hole Diameter: 7.9mm
Washer Thickness: 0.8mm
Max Temperature: 210F