Connex COX866000 Screw Clamp, Silver/Black/Red, 1000 x 120 mm - - Amazon.com
WORKPRO Screw clamp set made of high-quality steel and nylon, span 200 mm/300 mm, clamping force 272 kg, jaw depth 50 mm/80 mm, 2 pieces for precise fixing : Amazon.de: DIY & Tools