A fisheye round bolt with a hole typically refers to a type of security fastener often used in various industries, particularly in the field of access control and security systems. This type of bolt features a distinctive "fisheye" lock mechanism on one end.
Here's how it works:
1. **Fisheye Lock**: The fisheye lock is an unconventional lock mechanism that has a unique shape, resembling a fisheye when viewed from above. It consists of a cylinder with a spherical protrusion at one end. The key for this lock also has a corresponding shape, allowing it to engage with the lock when inserted. The design of the lock makes it difficult to pick or manipulate without the correct key.
2. **Round Bolt**: The other end of the bolt is a standard round head, which can be screwed into a mounting surface using a screwdriver or nut and bolt. This allows the lock mechanism to be attached to or removed from its position securely.
3. **Hole**: The hole mentioned could refer to several things depending on the context:
- **Pre-drilled Hole**: Sometimes, the term might refer to a pre-drilled hole in the mounting surface where the bolt will be inserted. This ensures the bolt fits snugly and securely.
- **Through-Hole**: Alternatively, it could be a through-hole through the bolt itself, which might be used for additional purposes such as threading wires or cables through the bolt while keeping them secure behind the lock mechanism.
These bolts are commonly used in various applications, including but not limited to, securing cabinets, doors, and other security-sensitive areas where traditional locking mechanisms may not provide enough deterrence against unauthorized access. They offer an additional layer of security due to their unique lock design and can be easily integrated into existing structures.