At Jishnu uPVC, our espag locks are engineered to deliver confident security with effortless handling. A precision-machined gearbox drives a multi-point locking strip, creating tight sash compression for superior sealing against noise, dust, and drafts. Adjustable cams let installers fine-tune the fit on site, ensuring consistent performance across varied uPVC casement profiles. Built from corrosion-resistant components and tested for high cycle life, the mechanism maintains smooth, low-torque operation even with daily use and changing weather. Universal handing (left/right) and standard handle spindle/screw centers simplify replacements and new installs alike, while the slim, profile-friendly design preserves clean sightlines without compromising strength. Choose Jishnu uPVC espag locks for a reliable combination of security, sealing, and long-term durability crafted to keep every window quiet, secure, and easy to operate.