Molly (fastener)
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A molly or molly bolt is a combination of machine-threaded screw and hollow wall anchor used to fasten objects to plaster or gypsum board. Molly bolts are used where there is no stud behind the drywal
Molly fastener
Figure 1 of the original patent for the molly bolt, U.S. Patent No. 2,018,251
Toggle bolt
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A toggle bolt, also known as a butterfly anchor, is a fastener for hanging objects on hollow walls such as drywall.
Molly (fastener)
…princple of expansion via deformation as the screw is tightened. The term drywall anchor covers a range of hollow-wall fasteners, including Mollies, toggle bolts, deformable plastic wall anchors (including wall plugs), and self-drilling threaded wall anchors. The molly bolt was patented in 1934 by George Frederick…
various opened and closed toggle bolts