In today's industrial world, worker safety is paramount, particularly when it comes to maintaining equipment and machinery. One critical aspect of ensuring a safe working environment is through lockout/tagout (LOTO) procedures, which prevent the accidental release of hazardous energy during maintenance or repair activities. One essential component of these procedures is the lockout hasp, a device that allows multiple workers to lock out a single energy source, ensuring that no one can accidentally re-energize machinery until all workers are finished with their tasks. Custom lockout hasps play a crucial role in enhancing the safety and efficiency of these systems. This article explores the key manufacturers of custom lockout hasps and their contributions to industrial safety.