Audi/VW plastic captive nut

This is a remix of SpectreGadget's original mount/nut (https://www.thingiverse.com/thing:703543) to accommodate different screws/bolts.

A modified VW/Audi part no. 811807577C.

Aftermarket boot/trunk grocery bag hook kits (eg. https://www.amazon.co.uk/dp/B01EYQ19QY/ref=cm_sw_r_cp_ep_dp_LsEAAbNVH7GXG) for Audi don't fit the A5/S5 coupe. The hooks I received came with M5 x 20mm hex socket cap head screws, which were too long for SpectreGadget's original mount. So this remix includes 3 different bolt/screw options using both the longer M5 and other common screws:

* 4.6mm through hole suitable for M5 (5mm) screw
* 3.0mm through hole suitable for 3.5mm (No. 6) self taping screws
* 2.5mm through hole suitable for 3.0mm (No. 4) self taping screws

I performed testing on various hole sizes and print orientations for strength and durability in PLA. Printing upright causes a weakness in the "legs" which can cause them to snap when pressure was applied inwards. Laying the part flat