About: http://webisa.webdatacommons.org/214621453

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	That part is a nut that (even without the locking screws) can be tighened against the head to lock them in place.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com