میخ
preferred label: nails @en
type: Concept
related: سنجاق

بست
preferred label: connectors @en
type: Concept
narrower: سنجاق

سنجاق
related: جفت‌ساز
related: میخ
broader: بست
preferred label: pins @en
type: Concept

جفت‌ساز
preferred label: couplings @en
type: Concept
related: سنجاق