A. The Toyotomi 20474049 Screw R is a replacement fastener used in compatible Toyotomi and Toyostove Laser heaters, including the Laser 52, Laser 55, Laser 56, Laser 56CA, and Laser 72.
This small service part is intended to replace the corresponding Screw R used in the heater's original assembly. On the Toyostove Laser 56, Rural Energy identifies Screw R as being located next to the main circuit board.
For repairs and maintenance, matching the replacement part number to the heater model helps preserve the original equipment configuration and avoids uncertainty over fastener fit.