The Toyotomi 20478355 is a genuine Screw 1Z for Laser 56, Laser 530, OM-22, OM-23. Genuine screw used at the blower motor assembly on these models.
This is an OEM Toyotomi part, so it fits and performs the way the original did. Confirm your heater model before ordering; the model is on the rating label on the unit. If you are not sure which part you need, Rural Energy support can check it against your model and serial number.
Rural Energy is a Toyotomi distributor and keeps Toyostove Laser and Oil Miser heater parts in stock for fast shipping to dealers and homeowners.