Master Lock 6 Pin Red Safety Lock-out Padl Unit PK. The 410RED High Security Safety Lock-Out Padlock is a serious tool to be used in the shop warehouse or home when a lock is required to be kept open while the door is in the closed position. Featuring a hardened boron alloy shackle the padlock is five times more difficult to break than standard padlocks. Sold in pairs with shims these tough padlocks are ideal for use on a wide range of lockout applications. With a number of securing features including the exclusive notch cutouts this lock is twice as much more effective in padlocking out a lock that is difficult to break. Specifications for Master Lock 6 Pin Red Safety Lock-out Padl 410RED: Manufacturer: Master Lock Color: Red Fabric/Material: Steel Weight: 1 lb Package Contents: Master Lock 6 Pin Red Safety Lock-out Padl 410RED / 300009-177 The Master Lock 6 Pin Red Safety Lock-out Padl 470-410RED is a quality addition to the Master Lock lineup. For more great deals on Locks by Master Lock please browse our Master Lock Locks page. Master Lock 6 Pin Red Safety Lock-out Padl 410RED Unit PK