Lockly LATCH EDITION SECURE PGD628 Installation Manual page 19

STEP 7: INSTALLING THE DOOR STRIKE
Close your door to see if your lock closes securely with your existing door strike. If the lock closes
securely, you may keep the existing door strike without removing the old hardware. However, it's
recommended that you use our door strike.
Make sure the slanted side of Latchbolt (F1/F2) is closing against
the slanted part of Strike Plate (H) before fixing it on to door frame.
F
DOOR STRIKE INSTALLATION