Application: We do OEM Production for those hardware locks Metal Zinc Ally Door Chain Guard Safety Security Bolt Anti-thief door Bolt etc. Applicable Door Chain Guard Safety Security Bolt for doors etc. Product Description: MaterialZinc Alloy+Iron Available lengthCustomized TypeSecurity Bolt Anti-thief door Bolt Lock CylinderN/A CaseZinc Alloy FinishBrass Plated, Nickel Plated & As requirement BacksetAdjustable OEM/ODMOk PackagingAs requirement 详æ??_2711802972_1767503271 Please be noted that all the products could be customized according to customers requirements.