General description Suitable for sliding doors, windows, and sliding glass doors, this unilateral hook lock offers smooth switching and reliable security without deformation. Made from high-hardness stainless steel and zinc alloy, it is durable, wear-resistant, and features a fine surface treatment that is corrosion-resistant, anti-oxidation, and free from rust and fading. Technical specifications Material: Stainless steel shell + zinc alloy accessory Size of the product: Suitable for slot size: approximately 185 x 20 mm Hole distance: approximately 17 cm / 6.7 inches Installation Includes installation accessories for convenient and quick setup Usage Designed for use with sliding doors, windows, and sliding glass doors Other information Condition: Brand New Note: Please allow 0-1 inch error due to manual measurement Monitors are not calibrated the same; item color displayed in photos may differ slightly from the real object