I have a BX2750D snowblower. I’m trying to find the proper right size grease fitting for the auger. Upon looking up the part number and getting one from my dealer the fitting is too long and too big to fit the hole in the shaft. The original part number is coincided to a new part number in that particular fitting is a quarter inch diameter with a threaded and that is too long it would hit against the shaft that’s inside of the tube that the auger blades are welded to. The hole in the auger tube appears to be about 3/16” and the grease fitting appears to be a punch type, no threads or any way to fit a wrench or socket on it.