What is the most secure way to install a hasp on a munitions storage facility door?

Welding the hasp represents the most secure method of installation for a munitions storage facility door because it creates a permanent, tamper-resistant bond that is difficult to remove or compromise. Unlike screws or bolts, which can potentially be undone with tools, a welded hasp is typically much more resilient against unauthorized access. The welding process effectively integrates the hasp with the door itself, providing enhanced physical security that discards the possibility of removal or manipulation without specialized equipment and time.

Other methods such as screwing the hasp, using bolts, or securing it with a padlock do not provide the same level of security. Screwing a hasp allows for easy removal since screws can be unscrewed with common tools. Using bolts might offer a stronger affixation than screws, but it still allows for the possibility of removal unless additional measures are taken. Furthermore, securing a hasp with a padlock can also be compromised if the lock is cut, picked, or manipulated. Therefore, while each option has its benefits, welding is superior in terms of creating a secure, permanent solution for securing munitions storage doors.