This articulated roller arm window stay is intended for window opening-control assemblies that use a separate receiving keeper. Roller arm stays are commonly used to restrict window opening movement. Its main visible difference is the pivoted arm construction, which combines a long central plate with a shorter end section joined by a round rivet. A raised circular roller head with a hex-socket center forms the engagement point, while dark side guide inserts are positioned along both edges of the arm.
The matching keeper has two broad end recesses and two smaller semicircular center notches, giving buyers a clearly defined interface to compare with the required sash and frame arrangement. Before selection, confirm the roller-to-keeper alignment, component interface, mounting position, connection dimensions, available clearance, and intended operating direction. The joint location and keeper orientation should also be reviewed against the required opening path.
For an OEM or ODM quotation, provide installation drawings or samples, overall and connection dimensions, sash and frame mounting positions, operating orientation, finish reference, quantity, and packaging requirements. These details allow the arm geometry, keeper layout, and installation conditions to be checked before production specifications are prepared.
