The Rigging Screw in Black is used to attach and tension the Stainless wire rope to the Eyelets. With the use of a simple rotation of the body, these swaging screws tighten to tension the wire in place. The durable black finish adds a bold, contemporary aesthetic that complements modern and industrial balustrade designs. These must be swaged with a Hydraulic Crimper — when crimping, always use jaw protection such as rubber or nylon inserts to avoid scratching the finish. Rigging Screw Tightening Tool Available. 316 Grade Stainless Steel.