Master Lock 1480DAT Barbell Receiver Pin Lock, 5/8"Stainless Steel Barbell lock, fits 5 8" receiver openings. Usable length of receiver pin is 2 3 4". Straight barbell style pins provide function and a lock at end of the unit provides protection. All weather cap protects keyway from the harsh elements. Stainless Steel Barbell lock, fits 5 8" receiver openings Usable length of receiver pin is 2 3 4" Push to Lock locking mechanism push lock body onto pin firmly and remove key Class III IV; 10,000lb.