{"product_id":"lambro-industries-284l-galvanized-worm-gear-clamp-4-in","title":"Lambro Industries 284L Galvanized Worm Gear Clamp 4 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe LAMBRO INDUSTRIES 284L is a galvanized worm gear clamp sized for 4-inch duct and pipe connections. Worm gear clamps use a slotted band tightened by a screw-driven gear mechanism, delivering consistent radial clamping force around the full circumference of the fitting. The galvanized steel construction resists corrosion in humid or wet service environments. This clamp is a standard hardware item found in HVAC ductwork, dryer venting, and general plumbing and mechanical work where a secure, adjustable band connection is required. Installation requires only a screwdriver or nut driver and takes seconds per clamp. These clamps are sold as a unit and packaged in quantities of 50.\u003c\/p\u003e\n\u003cp\u003eThe 284L is suited for residential and light commercial applications where 4-inch round duct, flexible duct, or pipe connections need a tight, vibration-resistant seal. Common uses include connecting flexible dryer vent duct to wall collars or appliance exhaust ports, securing round HVAC duct transitions, and fastening PVC or metal pipe sleeves in plumbing rough-in work. HVAC technicians, plumbers, sheet metal contractors, and general mechanical tradespeople keep these on hand as a routine installation consumable.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-inch nominal diameter sizing for standard round duct and pipe fittings\u003c\/li\u003e\n  \u003cli\u003eGalvanized steel band and housing for corrosion resistance in damp service conditions\u003c\/li\u003e\n  \u003cli\u003eWorm gear mechanism provides smooth, uniform tightening around the full band circumference\u003c\/li\u003e\n  \u003cli\u003eTool-compatible drive slot accepts standard flathead screwdriver or 5\/16-inch hex nut driver\u003c\/li\u003e\n  \u003cli\u003ePackaged 50 units per package, suitable for stocking service vehicles and shop inventory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard worm gear band clamp for 4-inch round duct, flexible duct, and pipe connections in HVAC, dryer venting, and general mechanical applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by HVAC technicians, plumbers, or sheet metal mechanics as part of ductwork or piping assembly. Slide the clamp over the duct or pipe end before seating the fitting, then position the clamp band over the joint and tighten the worm gear screw until the band is snug and evenly seated. Do not overtighten to the point of deforming the duct wall or flexible duct collar. Follow applicable local mechanical codes and manufacturer duct installation guidelines when securing dryer exhaust or HVAC duct systems.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\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\u003ePackage Quantity\u003c\/strong\u003e: 50 per package\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: EA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4.5 pounds\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: LAMBRO INDUSTRIES\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 284L\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LAMBRO INDUSTRIES","offers":[{"title":"Default Title","offer_id":51524397007154,"sku":"284L","price":81.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c04e2fd9f0f5b674a5fb4071066f0b72.jpg?v=1785447891","url":"https:\/\/voomisupply.com\/products\/lambro-industries-284l-galvanized-worm-gear-clamp-4-in","provider":"Voomi Supply","version":"1.0","type":"link"}