{"product_id":"3m-7000124668-dual-lock-fastener-sj3871-black-0-5x45yd","title":"3M 7000124668 Dual Lock Fastener SJ3871 Black 0.5x45yd","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe 3M 7000124668 is a Dual Lock reclosable fastener supplied as model SJ3871 in a continuous roll format. It features a black polypropylene mushroom-stem surface bonded to a modified acrylic adhesive backing, allowing it to mate with an opposing Dual Lock strip for a secure, repositionable closure. The fastener delivers 400 stems per square inch and an engaged thickness of 0.24 inches. It is rated for a closure life of 1,000 open-and-close cycles and maintains performance up to 180 degrees F. Trade installers in HVAC, electrical panel, and general industrial applications use this product to create clean, tool-free access panels and component mounting solutions.\u003c\/p\u003e\n\u003cp\u003eThis fastener is suited for both indoor and outdoor installations where a reclosable, pressure-sensitive mounting solution is needed. The modified acrylic adhesive bonds to a wide range of low to medium surface energy materials, making it practical for use in equipment housings, ductwork covers, and control panel liners. It performs well in medium-temperature environments and is appropriate for use on powder-coated paints, acrylic, polycarbonate, ABS, and polyethylene substrates. The roll format allows installers to cut to length on the job.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e400 stems per square inch for firm, consistent closure across the bond area\u003c\/li\u003e\n  \u003cli\u003eModified acrylic adhesive backing adheres to low and medium surface energy materials\u003c\/li\u003e\n  \u003cli\u003eRated for 1,000 closure cycles for long-service reclosable mounting\u003c\/li\u003e\n  \u003cli\u003eTemperature resistance up to 180 degrees F for medium-temperature environments\u003c\/li\u003e\n  \u003cli\u003eRated for indoor and outdoor use\u003c\/li\u003e\n  \u003cli\u003eBlack polypropylene construction in a continuous roll for cut-to-length installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use on polyethylene, acrylic, polycarbonate, ABS, powder-coated paints, and other medium to low surface energy materials. Intended to mate with an opposing 3M Dual Lock strip for a complete reclosable fastener system.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eClean and dry the substrate thoroughly before applying the adhesive-backed strip, as surface contamination will reduce bond strength. Cut the roll to the required length using shears or a utility knife. Apply firm hand pressure along the full length of the strip to ensure full adhesive contact. Allow adequate dwell time before loading the closure, following standard pressure-sensitive adhesive bonding practice.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel Series\u003c\/strong\u003e: SJ3871\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStem Density\u003c\/strong\u003e: 400 stems per square inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngaged Thickness\u003c\/strong\u003e: 0.24 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClosure Life\u003c\/strong\u003e: 1,000 cycles\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Resistance\u003c\/strong\u003e: 180 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRoll Width\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRoll Length\u003c\/strong\u003e: 45 yards\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBacking Material\u003c\/strong\u003e: Polypropylene\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdhesive Type\u003c\/strong\u003e: Modified acrylic\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: 2.63 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: 3M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7000124668\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51342894989618,"sku":"7000124668","price":1219.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310523992.jpg?v=1782009879","url":"https:\/\/voomisupply.com\/products\/3m-7000124668-dual-lock-fastener-sj3871-black-0-5x45yd","provider":"Voomi Supply","version":"1.0","type":"link"}