{"product_id":"don-jo-db478m-black-dust-box-asa-mortise-strike","title":"Don-jo DB478M Black Dust Box Asa Mortise Strike","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe DON-JO DB478M is a black plastic dust box designed to fit 4.875-inch ASA mortise strikes on standard door frames. Dust boxes protect the mortise strike pocket from debris, paint overspray, and foreign material when the door is unlatched or the latch bolt is retracted. This component is installed by locksmiths, door hardware technicians, and finish carpenters during new construction or retrofit work. The black finish is low-maintenance and resists common smudging, requiring only a wipe-down for cleaning. Manufactured in the USA, the DB478M is a single-unit accessory sized specifically for the 4.875-inch ASA mortise strike standard.\u003c\/p\u003e\n\u003cp\u003eThe DB478M is suited for interior and exterior door applications where an ASA mortise strike is installed. Typical use cases include commercial and residential entry doors, office doors, and hollow-metal or wood door frames that receive a standard 4.875-inch mortise strike. The part ships as a single unit and is intended as a direct accessory to the mortise strike installation rather than a standalone door hardware component.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 4.875-inch ASA mortise strikes for a precise, rattle-free fit\u003c\/li\u003e\n  \u003cli\u003eBlack plastic construction resists corrosion and is lightweight\u003c\/li\u003e\n  \u003cli\u003eLow-maintenance finish wipes clean without special products\u003c\/li\u003e\n  \u003cli\u003eNon-hazardous material  -  safe to handle and dispose of per standard jobsite practices\u003c\/li\u003e\n  \u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with 4.875-inch ASA mortise strikes on standard residential and commercial door frames.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThe DB478M is installed by locksmiths or door hardware technicians as part of a mortise strike rough-in or replacement. Before installing, confirm the door frame pocket dimensions match the 4.875-inch ASA mortise strike standard. No special tools are required beyond standard hand tools used in door hardware installation. Ensure the latch mechanism is fully disengaged and the door is secured before seating the dust box into the strike pocket.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimension\u003c\/strong\u003e: 4.875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHazardous Material\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: USA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity\u003c\/strong\u003e: 1\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: DON-JO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: DB478M\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DON-JO","offers":[{"title":"Default Title","offer_id":52062194991410,"sku":"DB478M","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/42a781787c3c932a93f96c3f6c266ba7.jpg?v=1790042293","url":"https:\/\/voomisupply.com\/products\/don-jo-db478m-black-dust-box-asa-mortise-strike","provider":"Voomi Supply","version":"1.0","type":"link"}