Camera House SmallRig Thumb-Screw V2 2pcs Pack with 1/4 inch thread - 1089
SmallRig 1/4" Thumb Screw (2 pcs) 1089 New thumb screw V2 with 1/4"-20 standard thread, 2pcs pack. Made of All aluminum alloy. Also a 1/4" thread on the bottom.
Price: $19.95 from Camera House