Hi SnowJoeMichigan,
The plug is designed to have extra threads. You should be able to start the plug 1-2 threads in. Once you have this started, you may use a pipe wrench to tighten the plug just enough to clear the scraper bar. We understand that the plug will be use often and will start to wear the threads. With the Brinly design this will extend the life of the plug so that you will not have to buy it later as a replacement part. If you do have issues with the plug after it has been screwed in and your drum is leaking, please give us a call at
877-728-8224 and we would be happy to make this right.
Best regards,
Brinly-Hardy Company