The Toyotomi 17185367 is a genuine Screw C8 for NS2700, NS2800. Genuine C8 machine screw used on the cabinet and internal assemblies of the NS2700 and NS2800.
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 NS-series heater parts in stock for fast shipping to dealers and homeowners.