Frontlock Hooks the automatic locking mechanism on O’Bannon Frontlock Hooks is as easy to open as your hand. Half concealed in the shank of the hook is a lever, which releases the latch only when the hook is gripped to engage or disengage the elevator bail. The latch is hinged just above this point and extends across the mouth of the hook. It is strong enough to ward off beams and girts, yet sensitive enough to respond instantly to the grip of the operator.
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