fastener
preferred label: بست @fa
type: Concept
narrower: stud (fastener)

stud (fastener)
narrower: rocker arm stud
broader: fastener
preferred label: پیچ دوسر (بست) @fa
type: Concept

rocker arm stud
preferred label: پیچ دوسررزوه اسبک @fa
type: Concept
broader: stud (fastener)