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Achieve secure, leak-free connections in refrigeration and HVAC systems with the Castel 1/2″ SAE Nut, featuring a precise Ø 12 mm internal thread. Engineered from high-quality brass with a corrosion-resistant finish, this nut provides dependable performance under demanding conditions.
Upgrade your installations with this high-performance nut, trusted by professionals to maintain system integrity and reduce maintenance time.