Patent ID: 9074617
Filing Date: 2015-07-07
Classification: F16B

Abstract:
1. A security fastener installation on a wheel having a recess hole, comprising: a wheel having a recess hole; a security fastener installed in said recess hole, said security fastener including: a first end portion; said first end portion being arranged so that it is exposed outside, at or inside an entrance to said recess hole; said first end portion comprising a first security feature that prevents said fastener from being removed from said recess hole should an attempt be made to rotate said fastener by gripping said first end portion; said first security feature comprising a security structure selected from the group consisting of (1) a post providing an area of weakness on said first end portion that prevents said fastener from being rotated and removed from said recess hole by gripping said post with an unauthorized tool, and (2) a combination of said post providing said area of weakness on said first end portion and a rotatable cap on said post; said post having a free end, a base end comprising a reduced diameter section providing said area of weakness, and an exterior surface and an internal bore that are both generally cylindrical in shape from said reduced diameter section at said base end to said free end of said post; a medial portion of said fastener; a key-receiving lock pattern on said medial portion; said medial portion being arranged so that a side wall region thereof extends within said recess hole with a defined circumferential gap space of reduced size selected to provide a second security feature that prevents said fastener from being removed from said recess hole should an attempt be made to rotate said fastener by gripping said side wall region, and said lock pattern being exposed outside, at or inside said entrance to said recess hole; a second end portion comprising a thread pattern, said second end portion being arranged so that it is disposed deeper in said recess hole than said medial portion; and said first end portion, said medial portion, and said second end portion being centered on a common longitudinal axis.