Durable zinc-alloy knob lock with an 18 mm long latch and double‑turn key mechanism. 

• Material: Zinc Alloy
• Know color + Lock housing Finish: Chrome + Nickel  
• 508K for 15-25mm thickness drawer plate
• Packing Info : 120 pcs/carton
• Handful knob to help open/close door friendly 

For 15-25mm thickness

• Double-turn mechanism: 180° key rotates for 9.5 mm latch travel, 360° for full 18 mm travel 
• Zinc alloy construction: sturdy and corrosion-resistant .
• Knob-operated: rounded knob for easy open/close functionality 
• Designed for 15–25 mm panel thickness: fits standard office drawer/door panels

• Office furniture: desks, filing cabinets, storage drawers and cupboards.
• Commercial fixtures: used widely in modular office environments.
• Replacement parts: perfect for upgrading or repairing Armstrong 508-series installations.
• Panel doors: suitable for 15–25 mm drawer or door panels requiring enhanced latch engagement.