Exploring Hooks and Latches: Your Questions Answered

Is the use of latches on hooks required by OSHA?

The answer is not straightforward. While there is no explicit mandate for the use of latches, OSHA 1910.181(j)(2)(ii) Derricks recommends using "safety latch type hooks wherever possible." Additionally, OSHA 1910.184(c)(6) specifies that "slings shall be securely attached to their loads." Although a latch is a common method of secure attachment, other alternatives such as using a shackle or wire "mousing" can also be used. Finally, it's important to note that employers have a duty under the OSHA General Duty Clause (Section 5(a)(1)) to protect employees from recognized hazards.

Is the use of latches on hooks required by ASME?

Yes, There is detailed guidance available on latches in various volumes. A few examples of these guidelines are:

• ASME B30.2 Overhead and Gantry Cranes requires the use of latch-equipped hooks, unless the use of a latch is deemed impractical or unnecessary for the specific application.

• B30.5-2018, Mobile Cranes mandates the use of hooks with latches, except when the use of a latch is deemed impractical.

• B30.16 requires hooks to be equipped with latches, unless using the latch would create a hazardous condition.

Is the use of latches on hooks required by Crosby?

Crosby suggests that latches should be used at all times, unless there are safety concerns that make using a latch less safe.

What is the most suitable type of latch to use?

Crosby provides multiple options for hooks and latches, and choosing the right one depends on the specific application and personal preference. They offer a wide range of options, from hooks without latches (Foundry) to self-closing latches (Shur-Loc). However, if the hook is utilized for personnel lifting, the appropriate option is a latch type that includes secondary securement capability.

Can you explain the meaning of secondary securement?

A typical latch usually has a spring that keeps it closed, and it can be opened by compressing the spring with pressure. However, if there is a bolt or cotter pin that needs to be removed before the latch can be opened, then it has secondary securement. This additional security feature provides redundancy and reduces the chances of unintentional opening.

Is it safe to assume that using a latch guarantees safety?

Using a latch can decrease the likelihood of a mishap occurring, but it is not a guarantee of safety. Safe lifting involves multiple factors such as the utilization of high-quality equipment that is regularly maintained and inspected, competent riggers overseeing the operation, thorough comprehension and adherence to relevant regulations and standards, and constant attention and vigilance from all involved during the lift.