Company is searching for a manufacturer of hollow rivets as per picture in attachment Material: iron Sizes: 4x16, 4x18, 4x24, 4x32, 5x8, 5x15, 5x24, 5x25, 5x30, 5x31, 5x32, 5x34, 5x38, 5x40, 5x53, 6x30, 6x53, 6x63, 6x22/5, 6x22/5, 6x10/5 Please contact directly the customer for further informations