Measuring stud bolts is a frustrating experience if you're not sure what you're doing. Everything with wheels, such as your lawnmower has stud bolts to hold the wheels in place. If you need to replace a worn or rusted wheel, determine the bolt-hole pattern and the distance between the studs. The pattern is how many studs are mounted on the wheel. In most cases, four or five studs are on lawn equipment.
- Skill level:
- Moderately Easy
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Things you need
- Ruler or tape measure
Remove the wheel and tire from the wheel hub by loosening the stud bolts with a tire iron or socket. Place the wheel and tire off to the side. This makes measuring the studs easier.
Position the wheel hub so one stud is placed at the "12-o'clock" position or positioned at the highest point of the wheel hub. This also makes measuring easier.
Measure the distance between the centre of the top stud and the centre of the bottom stud if your wheel hub only has four studs, six studs or eight studs. This gives you the measurement needed for your stud spacing. Measure the distance between the centre of the top stud and the centre of the second stud, positioned clockwise from the top stud, if your wheel hub has five studs.
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