The fischer connector channel washer HK 31 has special retaining lugs that make it easier to achieve a strong, positive-fit connection, even in the case of suspended channels. The retaining lugs enable easy installation longitudinally and transverse to the mounting channel profile FLS. fischer offers the channel washer with standard 8.5 mm and 10.5 mm perforations. These allow an easy and precise installation process and thus save time and money. The galvanized zinc version is suitable for installation in buildings. The fire protection certificate provides added safety in the case of the channel washer.