About: http://webisa.webdatacommons.org/5255152

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	Located along the outer wall of the screw and extending partially along the base and partially along the head are a pair of non-intersecting or spaced slots.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr