Sheeba Engineering Co. Ltd. Manufactures Gravity Lock with Double Locking. Sheeba Engineering Co. Ltd. Also offers products like Dyeing Machine Accessories, Perforated Triangular Spindles, Loading and Unloading Basket [Auto Doffing] etc.Gravity Lock with Double Locking comes with bottom die pressed plate with automatic resetting for threaded bolt M16 or 5/8" BSW. The Gravity Lock with Double Locking when coupled with the cap and the head plate, it becomes a unit to eliminate leakage. The Gravity Lock with Double Locking is couple able for pressed packages.