Camera Accessories
9.solutions Snap-in-Socket V2
9.solutions Snap-in-Socket V2, Adapter with Quick Release Fastener, Mounting options: One 3/8"-16 threaded socket, 3/8" or 5/8" (16 mm) spigot mount, Max. load capacity: 20 kg, Weight: 125 g
https://www.bizrate.co.uk/cameraaccessories/9-solutions-snap-in-socket-v2-oid36385195678.html