US 12,006,962 B2
Anti-vibration anti-loosening threaded fastener
Sheng-Hsiung Shih, Tainan (TW)
Assigned to Shoxproof Technology Co., Ltd., Tainan (TW)
Filed by HUIXIANG PRECISION CO., LTD., Tainan (TW)
Filed on Mar. 12, 2021, as Appl. No. 17/199,753.
Prior Publication US 2022/0290715 A1, Sep. 15, 2022
Int. Cl. F16B 41/00 (2006.01); F16B 35/06 (2006.01); F16B 37/14 (2006.01)
CPC F16B 41/002 (2013.01) [F16B 35/06 (2013.01); F16B 37/14 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An anti-vibration anti-loosening threaded fastener comprising:
a bolt having a head, a threaded stud extending from a bottom surface of the head, the stud having a bore formed axially in the stud;
a nut having a cavity formed therein, the cavity having opposing open and closed ends and a threaded portion formed on a circumferential wall of the cavity, the open end of the cavity being configured for threaded engagement with the stud; and
a post protruding axially from a central area of a bottom of the cavity and passing into the bore of the stud,
wherein one of the bore or the post is eccentrically disposed with respect to an axis of the stud and they are thereby eccentrically mated one with respect to the other and forcibly contact one another when the bolt and the nut are threadedly fastened to each other to thereby resist loosening of the nut relative to the bolt.