名詞 pintle:

1. a pin or bolt forming the pivot of a hinge

pin.tle

n.（名詞）
A pin or a bolt on which another part pivots.
樞軸，柱銷(xiāo)，扣針：在另一鉚釘上的扣針或銷(xiāo)子
Nautical The pin on which a rudder turns.
【航?！?/i> 舵栓：牽引槳的部分
The pin on which a gun carriage revolves.
炮架樞軸：炮架轉(zhuǎn)動(dòng)用的樞軸
A hook or a bolt on the rear of a towing vehicle for attaching a gun or trailer.
牽引掛鉤：一種掛鉤或軸，可在拖車(chē)后裝炮或拖斗

來(lái)源：
Middle English pintel
中古英語(yǔ) pintel
from Old English [penis]
源自 古英語(yǔ) [陰莖]