- heel (of a padlock shackle)
- n.the part of a padlock shackle which is retained in the case when in the unlocked position
Locksmith dictionary . 2014.
Locksmith dictionary . 2014.
heel & toe locking — n. describes a padlock which has locking dogs at both the heel and toe of the shackle … Locksmith dictionary
hinged shackle — n. a shackle whose heel is permanently mounted to the padlock case in a manner which allows the shackle to pivot to open … Locksmith dictionary