Profile: Kingfisher (Lubrication) Ltd. manufactures a wide range of fittings, from both mild steel and stainless steel. It is usual to categorize grease fittings by thread type. All mild steel hydraulic fittings are case hardened to prevent wear. A surface ball check prevents entry of dirt. Springs are heat treated after coiling to ensure prolonged life. We are registered under ISO 9001:2008.