The Brass Fitch Fastener C/W Keep (Locking) is a high-quality sash window fitting designed for reliable locking and elegant appearance. Featuring a curved lever handle and a secure keep, it ensures a firm closure and added safety with its integrated locking mechanism. Crafted from solid brass, this fastener is corrosion-resistant and built to last, making it ideal for traditional sash windows in heritage homes or restoration projects. Its timeless design offers both function and charm for classic interiors.