Double-Hinge Hasp is ideal for reaching around and locking corners and angles Use this flexible double-hinge hasp to lock doors at up to 90 degrees; it's perfect for reaching around corners and angles. Double-hinge locking hasps can also be used in conjunction with a padlock and door hole cover to replace a missing deadbolt lock. Double-hinge hasp has a hard steel body for strength, and hardened steel staples to resist cutting and sawing. Locking hasps have tamper-proof hinges to help resist prying.