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
Connex COXT865210 100 x 50mm DIY Screw Clamp (Pack of 2) : Amazon.de: DIY & Tools