SHIELD Metal WashersSD-WSizes 1.7mm - 39mmMaterial Carbon Steel / Alloy SteelStandard DIN125Finishing Electro-GalvanizedApplication Water, HVAC & Fire-Fighting Note: See below for technical details… Other Resources Technical DatasheetGeneral CatalogueDownloadDownload Product Inquiry Note: All fields are required. Other Steel Piping Products Section 1 THREADED GROOVED BUTT-WELDED STEEL PIPESSection 1 CONDUITS FLEXIBLE EXPANSION JOINTS FLEXIBLE SPRINKLER DROP