Product DescriptionThe SIOUX CHIEF 521-559 is a quadruple-hole pipe eye suspension bracket with a galvanized finish, designed to support and secure pipe runs in commercial and residential plumbing and mechanical installations. This bracket mounts overhead or to structural framing and holds pipe in place using eye-style loops, distributing load across four attachment points. The galvanized coating resists corrosion in damp or exposed environments. Licensed plumbers and pipefitters install this bracket during rough-in when routing horizontal or vertical pipe through floor and ceiling assemblies or along structural members.The 521-559 is suited for use in commercial plumbing, HVAC piping, and mechanical room installations where multiple pipe runs require overhead support. The quadruple-hole configuration allows a single bracket to manage up to four pipe lines simultaneously, reducing the number of individual hangers needed. This bracket is appropriate for use in both new construction and retrofit projects where galvanized hardware is specified for corrosion resistance.Key FeaturesQuadruple-hole design supports up to four pipe runs from a single bracketGalvanized finish provides corrosion resistance in wet and exposed environmentsEye-style suspension loops secure pipe without rigid clamping, allowing minor movementCompatible with standard overhead fastener and threaded rod hanger systemsCompatibilityDesigned as an OEM-style replacement and standard-fit suspension bracket for use in commercial and residential pipe support applications requiring overhead or structural-frame mounting.Installation NotesInstallation is typically performed by a licensed plumber or pipefitter. Shut off the relevant piping system and depressurize lines before positioning and securing the bracket. Fasten to structural framing or overhead supports rated for the combined load of the bracket, pipe, and fluid content. Follow local plumbing codes and applicable IPC requirements for pipe support spacing and hanger material specifications.Technical SpecificationsConfiguration: Quadruple HoleFinish: GalvanizedUPC: 739236266163Standard InformationBrand: SIOUX CHIEFManufacturer Part Number: 521-559