46mm Rear axle nuts are torqued to 369 ft lbs (so if you weigh 185 lbs stand 2 feet out on a breaker bar). We have seen some less expensive ones on the market but have found them not to be quite 46mm so your socket will not fit on them without filing down the outside of them. This brand will fit fine. BTW - here is a link to the tool that will help you remove them if you don't have correct socket and breaker bar.