Hollow Spy Bolt Covert Hidden Contents Container

The Hollow Spy Bolt is the improved brainchild of the Cold-War era Soviet KGB "dead drop" bolt. The Spy Bolt looks and feels like a standard, unimportant metal bolt, but the head unscrews to show the hollow inside of the bolt body. The head features an O-ring seal for waterproof storage, and revears threading on the bolt head for additional security. The new Spy Bolt features a 3/4" diameter body for increased storage space. The secret storage compartment has a .49" diameter, and a max depth of 2.7". The total length of the Spy Bolt is 3.43"