The Advantage Threaded 5/8” diameter pin E-bike rack hitch lock is great for locking your Heininger Advantage bike rack to the hitch. Hitch lock has a 5/8" diameter pin and works for 2" receivers designed for class III or class IV receivers. The threaded bolt provides the anti-wobble needed to keep your bike rack secure. Comes with 2 keys and has a covered key slot for weather resistant key insertion and removal. Designed for the Heininger Advantage EBike Rack product, we cannot guarantee that this item will work with all other manufacturer's products. It is designed to work with a threaded receiver appliance (M16 mm, its pitch is 2.0mm) to avoid annoying rattling while traveling. Please check with the manufacturer of your item to see if our specs will match your bike rack, cargo carrier, hitch step or other hitch mounted device.