When a face-mounted post carries heavier loads, this dual-bracket mount answers with a second point of contact: the bottom support bracket sits below the main one, shortening the moment arm and sharing the load so the post takes more side force than a single-bracket mount. Built to the European 42.4mm (1.67" OD) standard with a heavier .080" wall spec, it bolts to a stair stringer face, a balcony or promenade edge, or a deck rim where floor mounting isn't possible. 316-grade satin stainless steel provides marine-grade chloride resistance outdoors and in humid air, and it pairs with the matching 42.4mm welded floor flange when a run mixes floor and face mounting. A spec sheet is available for engineering documentation.