Picture frame clip (turn-button)

Use these to secure your artwork into a frame. Especially useful if you don't have glazier points or the existing tabs are broken. In my case, our glass/art/matte was too thick for to use the tabs built into the frame.

These are intended for #6 screws. 1/2" length is probably about right. I drilled 1/16" pilot holes in the frame to make sure the screw didn't split the frame.