Regular Gator Lock's patented design encases your standard 5/16 & 3/8 hex nuts, bolts and lag screws, making unauthorized removal extremely difficult. Machined for aircraft-grade anodized aluminum. Protects public safety by deterring theft and vandalism of critical traffic signs. Reduces cost and labor of replacing stolen signs. Maintenance-free locking system secures signs. Easy on, easy off with proprietary thin-walled socket. Eliminates the retrofit expense to safely secure lag screws in wooden posts. Holds signs securely during high winds with less wobble than other systems. Beveled-wall exterior is designed to deflect blows from hammers. Socket sold separately.