Cover retaining spring for fastening - clamping function - the GRP cable tray cover. When fastening, ensure that under normal conditions 2 pieces per meter are attached alternately. Due to external influences, such as wind loads, the number of cover retaining springs must be increased. . Can be used for: GRP cable tray cover KKD... and cable trays KKL... and KK... with edge heights of 50, 80 and 110 mm Dimensions (approx. dimensions) B : 20 mm Material : Stainless steel, material no. 1.4404, AISI 316L