{"product_id":"3m-7100045019-dual-lock-reclosable-fastener-sj3440-black","title":"3M 7100045019 Dual Lock Reclosable Fastener SJ3440 Black","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe 3M 7100045019 is a plain-backed, non-adhesive reclosable fastener tape sold as a 6-inch-wide by 50-yard roll. The SJ3440 type features 250 mushroom-shaped stems per square inch and an engaged thickness of 4.0 mm. When two mating surfaces are pressed together, the interlocking stems generate tensile strength high enough to substitute for screws, rivets, and other mechanical fasteners. This product is black and ships as a single roll. Installation is handled by fabricators, maintenance technicians, and assembly professionals across a wide range of industries.\u003c\/p\u003e\u003cp\u003eThe SJ3440 has seen broad use in transportation, electronics, business equipment, machinery, medical devices, and sign and display applications. The plain-backed format is suited for situations where the installer will apply their own adhesive, use heat bonding, or mechanically attach the tape to a substrate. The 6-inch width accommodates wide-area fastening needs, and the 50-yard roll length supports high-volume production or large-format installations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e250 stems per square inch for high-engagement tensile strength\u003c\/li\u003e\n\u003cli\u003eEngaged thickness of 4.0 mm for positive interlock feedback\u003c\/li\u003e\n\u003cli\u003ePlain backed with no adhesive, allowing custom bonding methods\u003c\/li\u003e\n\u003cli\u003eBlack color suitable for visible or concealed installations\u003c\/li\u003e\n\u003cli\u003e6-inch-wide by 50-yard roll format for wide-area or bulk use\u003c\/li\u003e\n\u003cli\u003eCompatible mating surface design allows same-type-to-same-type closure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose reclosable mechanical fastener for use across transportation, electronics, business equipment, machinery, medical, and sign and display applications where a non-adhesive-backed format is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by fabricators, assembly technicians, or maintenance personnel familiar with mechanical fastening and surface preparation. Because this fastener is plain backed, the installer is responsible for securing it to the substrate using an appropriate adhesive, heat weld, or mechanical method suited to the application surface and environmental conditions. Ensure both mating surfaces are clean and free of debris before engagement. Avoid overstretching the tape during handling, as deformation of the stems can reduce tensile performance.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem Density\u003c\/strong\u003e: 250 stems per square inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngaged Thickness\u003c\/strong\u003e: 4.0 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 50 yards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacking\u003c\/strong\u003e: Plain, no adhesive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Roll\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 15.39 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00048011579122\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: 3M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7100045019\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51343968960818,"sku":"7100045019","price":2668.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310523283.jpg?v=1782026132","url":"https:\/\/voomisupply.com\/products\/3m-7100045019-dual-lock-reclosable-fastener-sj3440-black","provider":"Voomi Supply","version":"1.0","type":"link"}