Abstract: A back plate serving as a slide bolt frame is designed to be fastened to a door such as a garage door to position a latch bolt slidably mounted on pivot tabs of the back plate. A cover plate has complementary pivot tabs which engage the latch bolt and pivotally mount the cover plate on the back plate. Both plates are also provided with a pair of locking tabs positioned so that one tab of each pair lies adjacent one tab of the other pair for engagement by the shackle of a padlock. In this way, the cover plate is held in an overlying position protecting the padlock. A transverse projection on the latch bolt has a slot engageable with tabs of each pair thereby to lock the latch bolt in either extended or withdrawn position.

Abstract: A security shield for protection of the shackle of a padlock makes use of a sheet of metal of relatively heavy gage which has one portion bent to a position where it overlies one side of the shackle when the shackle is in locked position on the body of the padlock making it difficult for an unauthorized person with an appropriate rod cutter or chisel to cut through the shackle and release the padlock. The shield is attached to the padlock itself, either permanently or temporarily, by use of a second portion of the sheet of metal bent to a suitable position where it is attached to and carried by the body of the padlock.