Glass-railing builds start their custom bracket here: the 300 series' glass-panel attachment component, drawn from the 308GM glass-mount bracket. It pairs with a separate stem, which sets the standoff, and a saddle, which cradles the rail, to form a complete bracket — and because the plate is OD-agnostic, one part works across handrail sizes, with the saddle chosen for the rail. Made from 316-grade satin stainless steel, marine-capable for damp and coastal settings, it lets a glass-railing bracket be assembled to a specific configuration rather than bought as a fixed factory unit. Part number 49-300GP.