Bait screws can be incorporated in to your rig anyway you choose, using a hair or using the ring bait screw directly on to the shank of your hook.
Bait screws are quite sharp and have a good thread so they can be used with a variety of baits.
These Bait Screws are made from a 1.2mm wire and are 12mm in length, they are finished in a matt black nickel coating for reduced visibility and glare underwater.