DigitalFoto C-Type Clamp for VideoMount accessories onto stands, tripods, pipes, handrails, poles, and more with the C Type Clamp from Digitalfoto. With its versatile multipurpose design, this clamp fits rod diameters from 0. 5 to 1. 7" and uses a locking thumbscrew for safe and quick lock and release. The clamp provides 1 4" 20 and 3 8" 16 threads and a 1 4" 20 mounting screw for attaching accessories. Nonslip rubber padding inside the clamp prevents slipping, and rubber rings line