Deltana Enterprises SS35U32D 3.5" Square Corner Mortise Hinge Pair window hardware

3.5-Inch Square-Corner Mortise Hinge Pair

This pair of plain-bearing mortise hinges fits standard 3.5-inch cut-outs on doors or windows. The satin stainless-steel finish resists corrosion in interior and exterior applications. Builders and homeowners installing or replacing square-corner hardware will find the dimensions match common mortise preparations.

Plain-Bearing Limits for High-Frequency Use

Without ball bearings the hinges suit low-to-moderate traffic doors rather than heavy commercial entrances. The 32-degree maximum opening angle may restrict access where a wider swing is required. Buyers needing fire-rated assemblies or adjustable tension should select a different hinge type.