A heavy-duty self-locking block that lifts and locks loads securely on 8 to 12mm line. The locking cams are designed so loads will not drop even if the control line is accidentally released. Designed for use with 3:1 or 4:1 purchase systems, including davit hoists for dinghies, outboards and stores on commercial and leisure boats.
Built with 316 stainless steel side plates, glass-reinforced nylon cover plates and an internal self-locking aluminium cam.
