Patent ID: 9400005
Filing Date: 2016-07-26
CPC Classification: F16B

Claim Text:
1. A self-clinching fastener suitable for connection to a member comprising: a. a shank portion of a diameter less than a head portion, b. the head portion having at least eight lands extending outwardly along the underside of the head portion spaced about the shank, each land having a face surface extending beyond the shank portion to a radius less than or equal to a radius of the head portion, the width of the lands reducing from adjacent the shank portion toward the radius of the head portion to mechanically interlock with a member with which the fastener is engaged when installed, and c. an axial annular engagement groove having a diameter larger than the shank portion, the annular engagement groove axially extending from the lands to a retaining collar adjacent the shank portion, the groove adapted to relieve material of a member on installation of the fastener by receiving material as the lands in the underside of the head portion mechanically interlock with the member.