Clips to mount a glass sheet over a heated printbed.
Intended for use with printrbot.
Print 4 of these.
Designed to fit the printrbot heated printbed as shipped plus a 4mm (4mm nominal, 3.75mm actual) glass sheet.
Accepts a 6-32 bolt. The hex-shaped countersink was intended as simply that, a countersink so the bolt head sits flush with the top of the clip, but it also fits a 6-32 nut. Who knows, it could come in handy.