The 5ive Star Gear Spy Bolt is an updated and improved version of the old Soviet KGB "dead drop" hollow bolt used during the Cold War. It features an O-ring seal for weather-proof storage of small valuables, communications, etc. It has reverse threading on the bolt head for additional security. This new version utilizes a 3/4" diameter bolt providing a larger storage area than the original.
Features:
- An updated and improved version of the old soviet KGB "dead drop" hollow bolt used during the cold war
- Features an O-ring seal for weather-proof storage of small valuables, communications, etc.
- Reverse threading on the bolt head for additional security
- Utilizes a 3.43" long, 3/4" diameter bolt providing a large secret storage compartment with a diameter of .49" and a maximum depth of 2.81"