Specification Brand : Master Lock BulletPoint1 : This listing is for eight (8) High Security Keyed Alike Padlocks w/ sixteen keys. ProSeries Padlocks are designed for Commercial/Industrial applications. The same lock with longer shackle lengths are also available, search 6121NKALF + 6121NKALJ - or a heavier duty version of this lock is available , search 6127NKALH. BulletPoint2 : If you order two 8-packs or any multiple of this lock we will automatically key them all the same. BulletPoint3 : These locks feature the BumpStop Advanced Cylinder Technology. (for explanation see more product details below). BulletPoint4 : DIMENSIONS: 2-1/8in (54mm) heavy steel body withstands physical attack. 1-1/8in (29mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for maximum cut resistance. BulletPoint5 : Ideal for harsh outdoor conditions - exclusive Pro Series Weather Tough cover protects lock from water, ice, dirt and grime. Solid iron shackle shroud resists harsh physical attacks. The removable cylinder can be replaced or re-pinned. 5 spool pin tumbler cylinder for added pick resistance. Dual ball bearing locking mechanism resists pulling and prying. Color : Small Lock Box ControllerType : Hand Control ControlMethod : application FinishType : Polished IncludedComponents : inc ItemDisplayDimensions_Height : 3 inches ItemDisplayDimensions_Length : 1.75 inches ItemDisplayDimensions_Width : 0.75 inches ItemDisplayWeight : 0.5 pounds ItemName : Master Lock - Eight (8) High Security Pro Series Padlocks 6121NKA-8 w/BumpStop Technology ItemPackageDimensions_Height : 12.7 centimeters ItemPackageDimensions_Length : 5.6 centimeters ItemPackageDimensions_Width : 10.3 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : padlocks LockType : Key Lock Manufacturer : Master Lock Material : Steel Material1 : Zinc Material2 : Alloy Steel ModelNumber : PLC10030050108010101010000 NumberOfItems : 1 NumberOfPieces : 8 PartNumber : FILFEELprq8s3x6tm406-11 ProductDescription : FEATURING BumpStop TECHNOLOGY - Lock bumping a surprisingly simple method of breaking in through locked doors and padlocks - is undoubtedly the newest emerging threat to personal property security. And virtually all locks in use today are particularly vulnerable to bumping. Until now. BumpStop Advanced Cylinder Technology employs an innovative, patent pending design which utilizes a unique reverse rake tapered driver pin, high performance springs and tightly machined cylinder chambers. During a bump attempt, this design prevents the transfer of force from the bump key to the pins and therefore blocks rotation of the cylinder so that the lock remains locked. ProductSiteLaunchDate : 2020-06-13T21:56:37.030Z RecommendedUsesForProduct : Security Size : 8 Pack Style : Compact SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 46171500