About: http://webisa.webdatacommons.org/423404060

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	The voids, either singularly or in combination, may be formed by structures such as the pin, the cutting flutes, the missing or removed threads, or the partially withdrawn screw.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk