Review on M12 x 1.25 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug with Copper Washer for O2 Oxygen Sensor or Oil Drain: Durable and Reliable Solution by Alex Tellekson

Name: M12 x 1.25 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug with Copper Washer for O2 Oxygen Sensor or Oil Drain: Durable and Reliable Solution
Item: M12 x 1.25 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug with Copper Washer for O2 Oxygen Sensor or Oil Drain: Durable and Reliable Solution
Rating: 5

February 19, 2023

Good fit, good brass washers to tighten

I used these to plug the exhaust ports of a 1985 454 with smoke tubes. They fit perfectly and were able to tighten them without deforming the bushing. They don't taper like a brass stopper. Used 8 of these and didn't switch for the first few heat cycles.

Pros