Window Lock Powdered coat and plating finishes are available, Zinc material, Cycle test passed, Tensile force test passed. Window Sash Lock,Window Accessories1. Model No.:31512. Material:zinc3. Finish: powder coated ,plating as option4. cycle test, tensile force test are passed5. with AAMA verified, bear Rohs6. Sweep lock, 2.25" C/L, .27" throw, #8 screw, .39" setback Window Lock