These nuts are a great addition to any kart, and are a required item in many steering, chassis, or braking components to properly fasten them.
First introduced in Australia in the mid 1970s, the Nylock nut is a fantastic locking nut that has added nylon material that prevents loosening of the nut once tightened, creating an aircraft-grade fitment and bolting behavior.
Available in a variety of sizes:
M8 - A common nut size for many wheel nuts (13 mm wrench / socket)
M14 - Ideal for most karting spindles (that utilize a nylock nut)