I have a New Holland TN75 tractor. This weekend we had to bleed the fuel lines which involved backing off the bleeder screw from the top of the fuel filter. Unfortunately, we wound up taking the bleeder screw completely out of the filter assembly. When we tried to tighten the bleeder screw, it would tighten down but not tighten all the way causing the fuel to continue to leak allowing the filter to suck air. I'm new to the tractor business and am hoping this is a replaceable part. Any help would be appreciated.