If you have older butt-hinged casement windows, securing them properly can be tricky without the right hardware. The Prime-Line H 3683 Casement Window Sash Lock is designed specifically for this common window style, offering a reliable and easy-to-install solution that works whether your window swings left or right. One of its standout features is the non-handed design, which eliminates the need to guess which version you need.
The lock includes three different strikes: a diecast surface strike for single swing-in windows, a stamped steel rim strike for paired or XOX swing-in casements, and a rectangular mortise strike for push-out casements. This versatility means you likely won’t need to buy additional parts. For taller sashes that require extra security, you can use two of these locks per window.
The diecast and steel construction provides durability, while the antique brass plating offers a classic look that blends with traditional home styles. Screws are included, making installation straightforward for most DIYers. Before ordering, it’s wise to check the line art drawing for dimensions to ensure compatibility with your specific window setup.
This lock is a budget-friendly option that delivers solid performance without requiring custom modifications or professional help. Whether you’re reinforcing a single window or upgrading multiple vintage casements, this lock simplifies the process with its adaptable design and included hardware. For the full hands-on summary, Check out the review.