Helgerson, Joel R.,Marigowda, Shresta,Fauth, Andrew. R.
申请号：
AU2010326140
公开号：
AU2010326140A1
申请日:
2010.12.01
申请国别(地区):
AU
年份:
2012
代理人:
摘要：
A screw system (10) includes a screw (20) and a washer assembly (40) captive to the screw. The washer assembly is polyaxially pivotable relative to the screw. The screw may be freely rotated in one direction relative to the washer assembly, but frictionally binds with the washer assembly when rotated in a second direction.
