San Jose Locksmith Home About us Emergency services Residential Commercial Free estimate Contact us Search:  Emergency Service Locksmith Services Car / Auto Locksmith   Residential Locks Commercial Locks Alarm Systems CCTV Access Control Intercom Systems Phone Systems Hardware & Accessories Back To: Hardware & Accessories Products 480 security door chain Heavy duty polished cast brass and bronze. Interlocking the chain with the doorplate permits the door to be slightly opened to allow viewing while maintaining security. Home About us Emergency services Residential Commercial Free estimate Contact us Locksmith New York locksmith| Los Angeles locksmith| Chicago locksmith| Washington DC locksmith Philadelphia locksmith| San Francisco locksmith| Oakland locksmith| Locksmith San Jose