Used to secure cable suspension clamps and other poleline brackets and clamps. Each square head bolt is supplied with one attached regular square nuts. Bolt provided with cone point to ease starting. Bolt head marking (ABI) appears on head of each bolt and is registered with the U.S. Patent Office per the Fastener Insignia Act. A minimum of six inches of thread per bolt. Minimum tensile strength: 28,390 lbf. Recommended torque value: 187.8 ft lb.