PART NUMBER # AU-WS06KEY LOCK ASSEMBLYThe Key Lock Assembly is a barrel lock system constructed of stainless steel. The two retaining pins and plate consist of 7075 T6 Aluminium. Key Lock Assemblies come in 12 varying lock combinations to ensure varied and reliable security. This system is engineered to prevent the tampering and theft of your ball mount system.&HITCH LOCKING PINThe Hitch Locking Pin is constructed of solid stainless steel and includes a barrel lock which can consist of one of twelve varying combinations. The locking pin can be utilized with 2”receivers.The purpose of the Hitch Locking Pin is to protect your property no matter where you travel.