| 摘要 |
<p>A sheet metal nut of the kind made from a length of strip bent into a U, to be slipped onto the edge of a panel, with a turn of a screwthread formed by a helical deformation of the edge of one aperture (20) in one limb (18), is adapted for retention on the panel by providing lugs (40) struck up in the edge of the aperture on the second limb (12). Hence the panel which is engaged by the nut needs an aperture of a size which is a clearance hole for the screw plus the thickness of the lugs only. <IMAGE></p> |
