Lockout hasps are safety devices that prevent the accidental activation of machinery by workers who are performing maintenance or repair. These devices are typically used to secure the power sources of machines and equipment, making it impossible for unauthorized personnel to operate them while work is being done. A typical lockout hasp features multiple holes, which allow several locks to be applied at once, ensuring that each worker involved in the task can lock the equipment and prevent others from unlocking it until the job is complete. This adds a critical layer of security, especially in high-risk environments like manufacturing plants, construction sites, and energy facilities.