About: http://webisa.webdatacommons.org/295801986

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	Each aperture is bounded by a region structured to enable the fastener, and particularly a threaded head portion of the fastener, to be tapped into the material constituting the region.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com