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
Bessey TPN50S14BE Temperguss-Schraubzwinge TPN-BE Malleable Cast Iron Screw Clamp, Multi-Colour, 500/140 mm - - Amazon.com