Vibrant Threaded Hex Bolt capping Oxygen Sens Bung Mild Steel M18x1.5 thread Bulk Pack of 5 pcs.

When you're fabricating an exhaust system or modifying an existing one, you'll often need to plug up an unused oxygen sensor port. These hex bolt plugs from Vibrant are designed specifically for that job. They feature an M18 x 1.5 thread size, which is common on many exhaust systems.

Made from zinc-plated mild steel, these plugs are built to handle the heat cycles of an exhaust system without damaging the threads in your bung. The hex head makes them easy to install and remove with a standard socket, and they come in a bulk pack of five, so you'll have spares or enough for multiple projects.