Delta Knox Nut security axle nuts, 3/8

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High security wheel nuts are a great way to secure your wheels without lugging around an extra u-lock or chain.Unique key uses a 6mm allen wrench to secure (allen wrench not includ ed).3/8” 26tpi fits 3/8” axles such as Shimano Nexus. If you are unsure what size you need, consult your local bike shop or hardware store. Show more