I'm trying to install mirror brackets into my wall for a lightweight frameless wall mirror (58" x 16").

My attempt at using a hollow wall anchor (Hillman 1/8" DXS drive wall anchor) didn't work very well. The drywall appears to be 3/8" thick, and directly behind it is some plywood that appears to be fairly thin too. The anchor just chewed up the drywall leaving a 3/4" diameter hole.

What's the correct fastener to use here?

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  • 1
    upon closer inspection, this might be plaster, not drywall
    – mark
    Commented Oct 22, 2017 at 8:39
  • That looks like plaster and lath... you may be able to screw directly into the lath, with drywall screws, if the mirror is one of those light weight door mirrors.
    – tahwos
    Commented Oct 23, 2017 at 23:25

2 Answers 2


Use a molly bolt, sometimes called a toggle bolt. They can be found and any hardware store. The butterfly end opens up on the other side of the wall material. When it is drawn tight it is a very good and strong fastener. While you are at the hardware store pick up a small can of spackel to be used to fill the seen portion of he fastened hole.

  • Will I need to drill a hole through both the drywall and plywood to insert the toggle bolt? Is there a specific length of toggle bolt I'll need?
    – mark
    Commented Oct 22, 2017 at 8:36

The plywood itself should be plenty strong, no anchor needed. Just use the thickest screw that the brackets can accommodate and drill appropriate pilot holes.

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