Bolt ear with nuts for drum closing rings Also called lever latches for drum closing rings,with nuts and a bolt as a complete set Material: Coll roll coil,zinc plated Packaging and Delivery: Carton box on pallets, 20days Factory ISO 9001 approved We can do any sizes of bolt ears as samples and drawings which clients supply. Moulds: Progressive die sets Bolt ear without nuts for drum closing rings Also called lever latches for drum closing rings,with nuts and a bolt as a complete set Material: Coll roll coil,zinc plated Packaging and Delivery: Carton box on pallets, 20days Factory ISO 9001 approved We can do any sizes of bolt ears as samples and drawings which clients supply. Moulds: Progressive die sets http://www.drumclosure.com