Prime-Line Horizontal Trim Lock Set, 3-3/8 in. Backset, Black Housing with Brass Plated Knobs, 1 Set, E 2478

Add classic vintage charm and dependable privacy to interior doors with the Prime-Line E 2478 Horizontal Trim Lock Set. Designed for antique, period-style, and traditional interior doors, this mortise-style lockset recreates the appearance of historic hardware while providing reliable everyday operation. Featuring a black housing paired with bright brass-plated knobs and rosettes, it is an ideal replacement for worn or missing vintage locksets and complements existing antique-style door hardware throughout the home. Constructed from durable diecast and stamped steel components, this lockset is designed for long-lasting performance and authentic styling. The traditional skeleton key mechanism includes a built-in night lock for interior privacy applications, making it suitable for bedrooms, home offices, studies, and other interior spaces. All locksets are keyed alike, maintaining consistency throughout compatible installations. The bright brass-plated knobs and rosettes provide an attractive contrast against the black-painted lock housing for a timeless appearance. Designed for interior doors with a 3-3/8 in. backset, this horizontal trim lock requires a mortised installation and is intended for doors specifically prepared to accept this style of lockset. It is not compatible with modern pre-bored doors without modification. Installation hardware is included for a convenient replacement solution. Compare dimensions and door preparation requirements with your existing hardware before purchasing to ensure compatibility.

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