Pintle
Pintle , noun
[A diminutive of Pin.]
1.
A little pin.
2.
(Mechanics) An upright pivot pin
(a)
(Mechanics) The pivot pin of a hinge.
(b)
(Mechanics) A hook or pin on which a rudder hangs and turns.
(c)
(Mechanics) A pivot about which the chassis swings, in some kinds of gun carriages.
(d)
(Mechanics) A kingbolt of a wagon.