{"product_id":"dundas-jafine-mc4zw-metal-worm-gear-clamp-4-inches","title":"Dundas Jafine MC4ZW Metal Worm Gear Clamp 4 Inches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe DUNDAS JAFINE MC4ZW is a 4-inch metal worm gear clamp built for securing semi-rigid and rigid aluminum ductwork in HVAC installations. Constructed from heavy-duty galvanized steel, this clamp provides a firm, corrosion-resistant connection at duct-to-pipe or duct-to-elbow joints. The worm gear drive mechanism allows precise tightening, making it a reliable mechanical fastener for maintaining airtight duct connections. Licensed HVAC technicians and sheet metal installers use this type of clamp as a standard component when assembling or servicing aluminum duct systems in both residential and light commercial applications.\u003c\/p\u003e\n\u003cp\u003eThe MC4ZW is suited for 4-inch diameter semi-rigid or rigid aluminum duct systems commonly found in dryer venting, range hood exhaust, and HVAC supply or return runs. It is applied wherever a positive mechanical clamp is needed to secure a duct section to a fitting, elbow, or transition collar. The galvanized steel construction holds up in attic, crawlspace, and mechanical room environments where moisture exposure is a concern.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 4-inch semi-rigid and rigid aluminum duct connections\u003c\/li\u003e\n  \u003cli\u003eHeavy-duty galvanized steel construction resists corrosion\u003c\/li\u003e\n  \u003cli\u003eWorm gear drive mechanism provides precise, even clamping force\u003c\/li\u003e\n  \u003cli\u003eSuitable for fastening ducts to aluminum pipes, elbows, and collars\u003c\/li\u003e\n  \u003cli\u003eConsistent mechanical seal helps maintain duct system integrity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and standard accessory clamp for 4-inch semi-rigid and rigid aluminum duct assemblies in residential and light commercial HVAC, dryer vent, and exhaust duct systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed HVAC technicians or qualified sheet metal installers. Power down or de-energize any associated HVAC equipment before working on ductwork. Slide the clamp over the duct end before inserting it onto the fitting, then tighten the worm gear screw with a flat-head screwdriver or nut driver until the duct is firmly secured. Duct installations should comply with applicable local mechanical codes and manufacturer duct system guidelines.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClamp Size\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Galvanized steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClamp Type\u003c\/strong\u003e: Worm gear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Duct Type\u003c\/strong\u003e: Semi-rigid and rigid aluminum duct\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: DUNDAS JAFINE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: MC4ZW\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DUNDAS JAFINE","offers":[{"title":"Default Title","offer_id":51383228694834,"sku":"MC4ZW","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312674012.png?v=1782590365","url":"https:\/\/voomisupply.com\/products\/dundas-jafine-mc4zw-metal-worm-gear-clamp-4-inches","provider":"Voomi Supply","version":"1.0","type":"link"}