B-46L Lineload U-frame twistlock (transversal lock)
The CONTECH® dovetail or U-frame twistlock B-46 is a lineload bottom twistlock used in combination with a dovetail or U-frame FR-31, Fr-31B, FR-31Q (elongated), double FR-32/A or a FR-32B/A of 45 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 line load hatch cover.
F1-4L, BF-16, 1-03-41-N, CB-25-1G, CV-5-IR