Hasps allow multiple employees to work on the same machine without confusion that can lead to accidents and injuries. This lockout tagout device can help employees follow proper procedures, work efficiently, and coordinate with each other easily.

TRADESAFE ensures that these hasps can keep up with the demands of an industrial facility. Not only can they resist extreme temperatures, but they can also withstand impact and the usual wear and tear that comes with frequent use. 

With the use of a reliable hasp, a machine is guaranteed to be unable to be turned back on until the last worker has finished their tasks. This kind of security and peace of mind may be priceless, but these hasps offer great value for money.

Hasps FAQ

A lockout hasp is a lockout tagout device that allows the placement of multiple lockout tagout padlocks. It consists of a slotted plate that slides over a staple, as well as jaws that can clamp over handles and switches.

Because a lockout tagout hasp can accommodate multiple locks, it can be used in group lockout tagout procedures. The hasp can be installed on a switch or used with another lock, such as a valve lock, circuit breaker lock, and more.

It’s always recommended that you receive formal training on how to install any lockout tagout devices. Generally, however, hasps are meant to be inserted into the place where a LOTO safety padlock is meant to attach. To install a hasp, open its jaws and place them into the padlock hole of a lockout tagout lock. Slide the two plates together so that all the padlock holes are aligned. Employees will then be able to install as many padlocks and Danger Do Not Operate tags as the hasp allows. The padlock holes can also accommodate zip ties tied to a tag.

Once a hasp is installed and used by multiple authorized employees, it will not be able to be removed until the last employee is done with their tasks and removes their padlock from the hasp. A hasp is therefore instrumental in ensuring that group lockout tagout procedures are successful.

A lockout tagout hasp, in essence, is meant to help isolate machinery, equipment, and systems from hazardous energy. Like other lockout tagout devices, it prevents the accidental or unintended re-energization of machinery and ensures the safety of repair and maintenance personnel. Furthermore, it is designed to be able to accommodate multiple personal safety padlocks and even zip ties attached to tags.

A group lockout tagout procedure entails the participation of multiple authorized employees in the repair or servicing of a single machine or piece of equipment. OSHA standard 1910.147(f)(3) lays out the guidelines for group lockout tagout:



Group lockout or tagout.



When servicing and/or maintenance is performed by a crew, craft, department or other group, they shall utilize a procedure which affords the employees a level of protection equivalent to that provided by the implementation of a personal lockout or tagout device.



Group lockout or tagout devices shall be used in accordance with the procedures required by paragraph (c)(4) of this section including, but not necessarily limited to, the following specific requirements:



Primary responsibility is vested in an authorized employee for a set number of employees working under the protection of a group lockout or tagout device (such as an operations lock);



Provision for the authorized employee to ascertain the exposure status of individual group members with regard to the lockout or tagout of the machine or equipment and



When more than one crew, craft, department, etc. is involved, assignment of overall job-associated lockout or tagout control responsibility to an authorized employee designated to coordinate affected work forces and ensure continuity of protection; and



Each authorized employee shall affix a personal lockout or tagout device to the group lockout device, group lockbox, or comparable mechanism when he or she begins work, and shall remove those devices when he or she stops working on the machine or equipment being serviced or maintained.


Hasps are particularly helpful in group lockout tagout procedures because they can accommodate multiple personal safety padlocks. Typically, hasps come with up to six separate padlock holes. When a hasp is attached to a single switch, multiple employees will be able to install their padlocks and thus be able to repair or service a machine as a group.

The typical design of a hasp entails the separation of its two plates so it can be installed on a switch or another lockout tagout device. Once the hasp is hooked onto a switch or LOTO device, you can then push the two plates together in such a way that the padlock holes are all aligned.

Once the padlock holes are aligned, you’ll be able to hook a padlock shackle through each hole. Using hasps and padlocks together is thus easy and straightforward.


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