York 021-18494-000 Screw 318973-401 While this thermostat is optimized

While this thermostat is optimized for 2-stage systems

providing a robust solution for contractors requiring high-reliability switching in demanding environments

heat stress on the diaphragm

Direct OEM Compatibility: Engineered for specific Carrier chiller models

This high-precision venter wheel

York 021-18494-000 Screw 318973-401 While this thermostat is optimizedThe York 021 18494 000 Cap Screw is a critical OEM replacement fastener designed for high stress mechanical assemblies within industrial HVACR systems. As a hex head cap screw, it features precision machined threads and a robust alloy construction to maintain structural integrity under the constant vibration and thermal cycling typical of commercial chillers and air handling units. This part ensures a secure metal to metal bond, preventing hardware