These are drop-in anchors, they're often used for overhead applications because the anchor's internal plug expands in four directions to hold the anchor firmly inside the hole before inserting a threaded rod or bolt. To install, place the anchor into the hole, insert the required installation tool (sold separately) into the anchor,and drive with a hammer until the thicker portion of the tool makes contact with the anchor. When installed, anchors sit flush with the surface.
| Size | M6 | M8 | M10 | M12 | M16 | ||||||
| d | 8 | 10 | 12 | 16 | 20 | ||||||
| L | 25 | 30 | 40 | 50 | 65 | ||||||
| drilling bit | 8 | 10 | 12 | 16 | 20 | ||||||
| Weight(g) | 5 | 10.2 | 19.4 | 47.6 | 107 | ||||||