B-56L U-frame twistlock transversal line load
The CONTECH® dovetail or U-frame line load twistlock B-56L is a bottom twistlock used in combination with a dovetail or U-frame FR-34, FR-34BQ (elongated) or a double FR-35B/A of 55 degrees to secure the corner castings of containers on board of a vessel. The twistlock is to be used when the sliding direction of the dovetail foundation is rotated 90° to the longitudinal direction of the container and only in the recesses of a lineloadhatchcover.
F1-6L (6R)-25, TL-BQL