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Sugatsune satin stainless steel piano hinge uses double folded construction, which increases hinge rigidity so doors or panels track more predictably over the full 13-3/4 inch length. The 1-1/4 inch width spreads load across a larger surface, which supports stable motion when the hinge is welded along a door edge or frame. The knuckles on both ends are crimped, preventing the pin from being removed, which helps keep the leafs aligned under repeated opening cycles. Because the hinge pin does not occupy the crimped end knuckles, the pin is mechanically captured between the crimps, which reduces the chance of pin walkout in service. The hinge is made from 304 stainless steel, which resists corrosion in typical shop and field environments, helping the welded joint and hinge action stay consistent over time.
This weld-on piano hinge is described as a 1-1/4 inch wide, 13-3/4 inch long stainless steel hinge, which defines the weld length and footprint available on the mating door and frame. The 304 stainless steel material supports welding-focused workflows on stainless structures, so the hinge can be permanently attached along the full leaf length. Double folded construction keeps the hinge leaves more resistant to twisting while welding and cooling, which helps keep the pivot line straight relative to the workpiece. Crimped knuckles at both ends hold the pin in place during handling and positioning, which lets the installer align the hinge without worrying about the pin shifting out during weld passes.
This piano hinge belongs to the hinge and piano hinge category, so it is suited for applications needing a continuous hinge line over a 13-3/4 inch span. The 1-1/4 inch width provides a moderate leaf projection that works on compact doors, lids, or panels where full-length support is needed but space at the edge is limited. Because the hinge is weld-on, it is oriented toward metal fabrication or stainless assemblies where a continuous welded seam can be applied along each leaf. The manufacturer, Sugatsune America, supplies this hinge with the part number LSN15-32-350, which lets installers and shops match drawings or repeat orders precisely when specifying this same weld-on piano hinge in future builds.
The double folded construction providing extra rigidity means each hinge leaf resists bending, which supports consistent gap lines between door and frame once welded in place. With the knuckles on both ends crimped to prevent the pin from being removed, the hinge behaves as a fixed assembly during fitting and welding, which reduces the risk of the pin backing out under repeated movement. Because the hinge pin does not occupy the crimped knuckles on both ends, the crimped sections act as dedicated mechanical stops, helping keep the pin centered for smoother swing over time. Being made from 304 stainless steel, the hinge tolerates typical ambient moisture and shop conditions, so the welded piano hinge can hold its function and appearance through regular use. The satin stainless steel description also indicates a non-mirror finish, which helps the hinge blend with many stainless surfaces without emphasizing fingerprints in daily operation.
The piano hinge is described as 1-1/4 inch wide and 13-3/4 inch long, so it provides a continuous hinge line over that span with a moderate leaf width for welding to doors or frames.
The LSN15-32-350 piano hinge is made from 304 stainless steel, which supports welding to stainless structures and helps resist corrosion in typical shop or interior environments.
The double folded construction provides extra rigidity, so the hinge leaves are less prone to flexing, helping doors and panels move more evenly along the entire 13-3/4 inch hinge length.
The knuckles on both ends are crimped to prevent the pin from being removed, which keeps the pin captured and supports stable, tamper-resistant hinge operation in service.
The hinge pin does not occupy the crimped knuckles on both ends, so the crimps trap the pin between them, helping maintain pin position and smooth pivoting over repeated cycles.
This weld-on 304 stainless steel piano hinge suits shorter stainless doors, lids, or access panels where a 13-3/4 inch continuous hinge and weldable 1-1/4 inch leaves are required.
This Sugatsune satin stainless steel 1-1/4 inch by 13-3/4 inch piano hinge provides double folded rigidity, crimped end knuckles, and a securely captured pin, so welded stainless doors and panels gain a continuous, corrosion-resistant pivot. Using the LSN15-32-350 designation from Sugatsune America aligns this specific hinge with drawings and repeat jobs, supporting consistent results on stainless projects that call for a weld-on piano hinge in this size range.