| 主权项 |
1. A device for securing a fastener to a first member comprising:
a body having a hollow interior and a lower end adapted to be secured to a first member, with an opening in the body at an upper end being defined by a narrowing of the hollow interior, and with an opening in the body at a lower end; a retainer positioned within the hollow interior of the body and having an upper portion sized to pass through the opening in the upper end of the body and a lower portion sized to not pass through the opening in the upper end of the body and a threaded interior adapted to engage threads of a threaded fastener; a cover having a portion positioned above the body with an upper surface having an aperture larger than a fastener shaft diameter and smaller than a fastener head; and a spring, having an opening into which at least portions of the body and retainer are received, wherein a first end of the spring engages a lower portion of the body at a position below the narrowing of the hollow interior and a second end of the spring engages an underside of the cover, biasing the cover away from the first member, wherein when the fastener is passed through the cover and is threaded into the retainer the fastener is free to rotate but is limited in axial movement in a first direction by the cover contacting the body or the first member and in a second direction by the lower portion of the retainer contacting the narrowing of the body. |
