How to Install a Hasp for a Door Lock

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Things You'll Need

  • Tape measure

  • Pencil

  • Torpedo level

  • Hammer

  • Awl or nail set

  • Electric screwdriver

  • Metal hasp and screws

Tip

Consider the level of security you need and choose the appropriate hasp to meet those needs.

Installing a hasp can quickly provide a way to lock a door.

An easy and efficient means of adding security to a closet or storage room is the installation of a hasp latch and padlock. There a many styles of hasps, both with and without integrated locks, and most hardware and home improvement centers offer a broad selection from which to choose. The installation procedure can be completed in a few minutes and will quickly provide protection from unauthorized access to the contents of the locked space.

Step 1

Use a tape measure to determine the installation height of the hasp on the door. Use a level to carry the height mark onto the door jamb.

Step 2

Preposition the hasp latching arm and the hasp loop on the door face to verify fit. The hasp assembly should fit flat against the closed door, with the loop centered in the latch arm's slotted opening. Swing the latch arm away from the loop and mark the screw holes in the loop's base plate on the door.

Step 3

Tap an awl or nail set with a hammer at each marked screw hole to create a pilot hole for the screws. Use a screwdriver to mount the hasp loop to the door using the the screws provided with the hasp.

Step 4

Hold the hasp's swing arm in place with the hinge flap beneath the swing arm, making certain it fits over the loop without interference when opened and closed. Hold the swing arm in place as you swing the arm off the loop and mark each of the screw holes on the door jamb.

Step 5

Tap an awl or nail set with a hammer at each marked screw hole to create a pilot hole for the screws. Use a screwdriver to mount the swing arm to the door jamb.

Step 6

Close the door and verify that the hasp swing arm closes over the loop smoothly and folds back to allow the door to open without interference.


Paul Massey

Paul Massey has been writing since 2009, drawing on a 35-year career in the construction industry. His experience includes 15 years as a general building contractor specializing in architectural design, custom homes, commercial development and historic renovations.