The fischer ventilation duct clamp LGS 355 for 355 mm size, two-part design with glued sound insulation insert for fixing spiral pipes or plastic pipes. The large opening angle of the LGS allows for quick and easy installation. The two screws allow for ideal adaptation to suit the outer pipe diameter. Connecting nut with combination thread M 8 / M 10 for holding threaded rods or hanger bolts. Pipe clamp screws with loss protection.