Parker screw 4.2x9.5 (20 ps) De Dietrich S14254

The Parker screw 4.2x9.5 is a small but essential fastener used in various heating equipment assemblies. This screw, with its specific dimensions, is commonly employed to secure components like panels, covers, or brackets in boilers and burners. Its precise threading ensures a tight fit, preventing loosening due to vibration or thermal expansion. When performing maintenance or repairs, having the correct screw is crucial for reassembly and long-term reliability.