Compatible with most BlackRapid ConnectR carabiners, the BlackRapid FastenR FR-5 effortlessly screws into a camera’s 1/4"-20 tripod mount. It is made from high-quality stainless steel with a molded nylon coating, which makes it durable. This fastener features a rubber washer, which prevents overtightening while installing a compatible tripod mount. The integrated D-ring facilitates using this fastener with straps that have a CR-3 or CR-4 ConnectR.