Window Sash Lock

This window crescent lock is perfectly engineered for old window renovation, aging door and window maintenance, and general old‑house refurbishment projects. Specially compatible with 80‑series plastic steel casement windows, this hardware accessory delivers precise matching for original window structures. Constructed from heavy‑duty rust‑proof metal, it ensures long‑lasting stability, tight locking and excellent windproof sealing, effectively solving loose and aging window lock problems. Easy to install with all required screws included, it is an ideal replacement hardware for worn‑out old windows, supporting small‑batch orders for renovation contractors and individual buyers