{"product_id":"cain-manufacturing-lfcwf100-insulation-weld-fastener","title":"Cain Manufacturing LFCWF100 Insulation Weld Fastener","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CAIN MANUFACTURING LFCWF100 is an insulation weld fastener designed for securing duct liner inside HVAC ductwork assemblies. At 0.75 inches in length, it is sized for use with 1 to 1.5 lb density duct liner, the standard liner weight range found in most residential and light commercial duct systems. Sheet metal workers and HVAC installers use weld fasteners like this to pin liner material flush against duct walls, preventing sagging and maintaining thermal and acoustic performance over the life of the system.\u003c\/p\u003e\u003cp\u003eThis fastener is suited for new duct fabrication and liner retrofit applications in air handling systems where duct liner must be mechanically secured in addition to adhesive bonding. The 0.75-inch shank length accommodates the typical compressed thickness of 1 to 1.5 lb liner material without over-penetrating or leaving exposed tips that could disrupt airflow.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.75-inch length sized for 1 to 1.5 lb duct liner applications\u003c\/li\u003e\n\u003cli\u003eWeld-style fastener for mechanical attachment of liner to sheet metal duct walls\u003c\/li\u003e\n\u003cli\u003eCompatible with standard duct liner densities used in residential and light commercial HVAC systems\u003c\/li\u003e\n\u003cli\u003eHelps prevent liner sagging and delamination in supply and return duct assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement weld fastener for use with 1 to 1.5 lb density duct liner in sheet metal ductwork fabrication and retrofit applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eWeld fasteners are installed by HVAC sheet metal technicians using a capacitor-discharge stud welder rated for the fastener size. Power down and de-energize any associated air handling equipment before working inside ductwork. Follow SMACNA duct construction standards for fastener spacing when securing liner to duct walls. Do not leave exposed fastener tips projecting into the airstream, as this can affect liner integrity and airflow.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: 1 to 1.5 LB Duct Liner\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: CAIN MANUFACTURING\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: LFCWF100\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CAIN MANUFACTURING","offers":[{"title":"Default Title","offer_id":51343048868146,"sku":"LFCWF100","price":92.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310552809.webp?v=1782014848","url":"https:\/\/voomisupply.com\/products\/cain-manufacturing-lfcwf100-insulation-weld-fastener","provider":"Voomi Supply","version":"1.0","type":"link"}