T-Slot Clamp, 8mm Threaded High Tension Clamping Capacity Hold-Down Clamp Versatility for Positioning for Woodworking Tool(A Set of Pressure Plate) : Amazon.co.uk: DIY & Tools
Murray Dual Bead Super Sealing Constant Tension Clamp 36.5-60.3mm
ENSTO SO65.1 Tension Clamps | Insulated Messenger Wire Systems
Bolted Type Tension Clamp, NLL and NLD Series Strain Clamp - Powertelcom