Set of 4 Mounting Screws for Large Diameter Housing
O'Brien Binding Mounting Screw Bolt Set, 1/4 X 20 Silver
ChromLives Thumb Screw Tripod Screw Camera Quick Release 1/4" Thumbscrew L Bracket Screw Mount Adapter with Bottom 1/4"-20 Female Thread (Pack of 2): Amazon.co.uk: Electronics & Photo
Screw, 1/4", for camera, tripod head, or quick-release plate - Amber Spyglass Ltd