Re: Loose lug screw
If its a drum brake or non-braked hub than jack the trailer up, take the wheel bearing cap off, remove the split pin and undo the bearing retainer nut and washer. The complete assembly will than slid off the spindle. You can than get at the back of the hub easily. If you have the tools than it should be an easy job from there. If the axle is fitted with a disk brake than its a bit more complicated as you wont be able to get the caliper off but you may be able to remove its retaining bolts and maneuver the caliper clear of the mountings so it comes off with the disk, you will also need to remove the brake line. I advise against grinding the stud off from the rear as some studs are tapered, if it is and you grind the head off you have nothing left to weld to. I recommend that you take it to a welding shop and have them tack the stud to the hub and you can than undo the nut. If you don't have a welder but insist on doing it yourself than hold the nut with a spanner and drill the stud out starting with a 1/8 drill than 1/4 than 3/8. The studs are hard carbon steel so you will need sharp drills and a lot of patience. Dont drill all the way through with the 3/8 as you may damage the inside of the hub, just drill to the depth of the nut, by than you should be able to break the nut off with a cold chisel. When its off knock them all out and replace all of them on all wheels. They are fairly cheap. Just remember to take a sample of the stud with you as there are a few different ones. Also make sure you get the right nuts as the taper on the nut must match the taper on the wheel, if you fit the incorrect set than you may find the nut will bottom against the hub before it tightens against the wheel. Good luck.
