The wing type bolts make it easy to add a bracket midway between brackets already fastened. The rectangular screw head of the wing type bolt gives the possibility to add screws midway. You can insert the screw midway of a beam and turn it to ensure tightening. This way it is easy to add brackets to your structure.
A bag contains 100 pieces of wing type bolts.
Manufacturers Part Number / SKU
I can't get these to work, I've tried many times, but they don't lock in place like the larger 2020 type, so just spin as you try to screw on the nut. I find it easier and less infuriating to just disassemble a part and add ordinary square head screws.