On my homelite weed eater i keep on stripping the carb manifold bolts so I just do what fenderhole does: screw in a bigger bolt. xcept once I was doing this 3 times on the same part of the cylinder and I couldn't get any bigger without making the hole in the manifold bigger, so I filled er up with JB drilled a small pilot hole in it, and screwed my bolt in there. And held great!