490511子母鎖 MasterKeySystemPadlocks KeyBelowisanexampleofabuildingwhereeachdoorisindividuallykeyedwithonemasterkeytocontroleachfloorandagrandmasterkeytoopeneverydoor. OneMaster-keyaccessesallthelocksinasystem,whileotherkeysopenonlyspecifiedlocks.Providesyouwiththeoptionofasingle-keyaccesstoyourproperty:home,business,andvehicles.Locksareavailablekeyed-different,masterkeyedorkeyed-alike,soyoudecidewhohasaccesstoeachentrance.Keyed-Alikelocksuseidenticalkeys,enablingasinglekeytoopenalllocksinasystem.Keyed-Alikesystemscanbeintegratedintomasterkeysystems Alltheselockshavedifferentkeys,butasinglemasterkeycanopenonlyseries. CODEDescriptionSize490511Padlockmasterkey,brass40mm14.5元 490512Padlockmasterkey,brass50mm22元490513Padlockmasterkey,brass60mm32元490514Masterkeyonlyforpadlock 重量 40---120g 50---240g 60-- 400g