Using the right tool for the job is imperative in any field, and it still applies to golf carts. We get it, it's more of a toy to some people, but these things are a lifeline to many of us. That's why using the correct items when you are repairing can be vital. If you just grab a nut that fits your garage to do the job, chances are it's not going to be the correct kind. A regular nut will not cut the mustard when installing suspension parts like a kingpin or leaf spring. It would help if you had a Buggies Unlimited Nylon Hex Lock Nut that would not back out over time. As you tighten a nylon lock nut, Friction heats up. It softens the plastic insert, therefore letting the thread of the screw deform it, and as it cools down, the plastic hardens, locking the nut into place. Get one of these coming for your EZGO leaf spring or Club Car kingpin today from Buggies Unlimited.