Vibrant Standard Oxygen Sensor Weld Bungs Mild Steel (M18 x 1.5 thread) - Bulk Pack of 5 pcs.

These are Vibrant Performance Standard Oxygen Sensor Weld Bungs, and they're made from mild steel with an M18 x 1.5 thread size. You get a bulk pack of 5, which is handy if you're doing a few projects or need extras for your fabrication work. They're designed to be welded into an exhaust system, providing a threaded port for an oxygen sensor.

The mild steel construction is a solid choice for many exhaust applications where extreme corrosion resistance isn't the primary concern. They're well-built for their intended purpose, offering a reliable way to add an O2 sensor bung to custom exhaust setups, headers, or anywhere else you might need to monitor your engine's air-fuel ratio.