These nuts have good chemical resistance and may be mildly magnetic. Snap them into square holes in thin material. Threads float inside the retainer so you can install a bolt at a slight angle to align with off-center parts. Mounting legs expand to lock the fastener in place. They can be installed by hand or with pliers.
| Nominal Diameter d | M5 | M6 |
| S | 12 | 12 |
| h | 8 | 8 |
| a | 7.5 | 7.5 |
| n | 2/2.5/3/4 | 2/2.5/3 |