Pre-assembly nuts for extrusions

Pack of 10. These nuts are inserted to the aluminum extrusions, allowing attaching items to them. The kit has all the nuts you need, but for attaching wiring connectors or anything else you might need or want, you need some of these. The pre-insertion nuts are inserted to the extrusion slots before assembly. If you really plan ahead your assembly, these are the right choice. (If you only plan ahead enough to know you are going to attach something but don't know yet what, post-assembly nuts are available.)