Fittings & Accessories

Unique variety of window fittings from different eras

The long life of steel windows is supported by the appropriate hardware. The hardware is not only durable; it complements the elegant and timeless appearance that is unique to the steel window. Made from high quality noble materials such as brass and stainless steel, the fittings are highly sustainable and available in a range of hardwearing, attractive finishes like satin nickel plate or imitation bronze to suit any application. There are matching styles of casement fasteners and stays for commercial and residential applications. A selection of handles, stays, folding openers, hinges, pivots, catches and bolts enable the window to open in a variety of ways. Concealed friction stay hinges and multi-point locking bolts present a clean uncluttered appearance, enhancing the slender lines of several product ranges. The concealed multi-point locking system provides higher security, enabling it to meet the “Secured by Design” standard. Its handle can be locked in the partially open “night vent” position to give background trickle ventilation. Key-lockable bolts are face-mounted or concealed in double leaf application and are available in extra-long lengths for high reach applications. The combination of established durable materials and modern manufacturing methods offers a range of fittings, which provide a traditional appearance, as well as high security and long life.


With the Heritage collection, OTTOSTUMM offers a unique variety of window fittings from different eras. These fittings are suitable for a variety of window types, which were common in the late 19th to mid-20th century.


The interest for this timeless Bauhaus design revamped and with more flexible production technology, the range was widely extended introducing new fittings able to please contemporary fenestration requirements.


The ONE collection by Piet Boon can be described as basic chic, with attention to operational comfort and detail. Not only the design but as well the material is made to last, being fully made of stainless steel.