Insulated PC Spacers & Supports Keystone Electronics Insulated PC Spacers and Supports come in push-in mount and screw mount versions and satisfy board-to-board and chassis-to-board requirements. These insulated components electrically insulate the board, eliminating the need for insulating washers. The spacers/supports are available in a wide spacing height range and will meet almost any PCB packaging need. Requiring no tools for assembly, spacers/supports snap-in to produce a robust and dependable grip.