The Crosby® line of 320 eye hooks are the most common and complete line up of eye hoist hooks made by Crosby®. The L-320AN series of hooks feature a latch from the factory. These genuine Crosby® hooks are metric rated at a 5:1 design factor and can be proof tested to 2 times the working load limit. Quic-Check deformation indicators allow for a quick measurement to see if your lifting hook is out of specifications and should be further inspected. Angle indicators are markings that allow you to determine the maximum angle that is allowed between two sling legs in the hook.