2018 4Runner - Front OEM skid plate (non-TRD) bolts and crossthreading

A family member has a 2018 SR5 4R where, in order to change the oil filter, you have to unbolt the following:

Part A: Plastic skid plate beneath the front bumper, held on by (4) 10mm bolts and 1 push-clip

Part B: Metal skid plate that is held on by (4) 12mm bolts


Part B is a freaking pain in the ass to install because the bolts holding it on are self-tapping type and prone to cross threading, even when anti-seize has been used.

Is there an aftermarket fix for this issue? Maybe some sort of quick clipping mechanism to avoid those (4) 12mm bolts?

 

There are some possible options for quick-release fasteners (dzus fasteners are used on some racing hoods, for example), which might not be great on an underbody application.

Some kind of cross-drilled post would allow for a cotter pin to be used to retain the skid, but that'll probably lead to some rattling.

If the vehicle never leaves pavement, then just removing the skid plate might be an option since there aren't all that many hazards to the underside when on-road (why most passenger cars don't have skid plates at all).

Probably the simplest (but still a bit complicated) fix could be to drill out or otherwise remove the factory attach point "nuts", expand the holes in the supporting structure and install riv-nuts for use with M8 size machine bolts; riv-nuts are available in stainless steel via Amazon and the installation tool isn't super-expensive.