About: hex head

Premodifier: hex
Head noun: head

Same concepts
http://dbpedia.org/resource/List_of_screw_drives

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
bolt	isap:170848565	0.245196
original	isap:384003642	0.175976
screw	isap:198329138	0.122296