I'm in the process of replacing any and all visible screws and bolts on my car with nice, new stainless fasteners, polished wherever possible. In case anyone else was considering doing some of this, here are all the sizes for the ones I could think of. Thought maybe it'll save someone some time!
INTERIOR
> Door sills (OEM)=8x #6 x ⅝” Phillips Truss Head Sheet Metal Screw
> Speaker covers (OEM teardrops)=These are a bit tricky. 10x #12 x 5/16” Oval Head Phillips Sheet Metal Screw will fit but they'll be sharp on the business end. So maybe I'll sand down? Not sure if there is another style of screw I should be looking for...
> Steering wheel (Nardi & Momo)=6x M5-.8 x 12+mm Allen Screws (I used the same size for my aluminum shifter surround as well so they match)
>>>For the following, I am personally just going with Mazda replacements unless I find a good source for black screws. So until then, here are the Mazda part #s:
> Rear view= 2x 998380525
> Visors= 4x 998620520B
> Console= 2x 998650516; 2x 998650516B
> Metal panel under steering column (name?)= 2x 998650516B
EXTERIOR
> License plate=2x M6-1 x 10+mm (for front, depending on mount); 2x M6-1 x 16+mm (rear)
> Side markers=8x #6 x ¾” Round Head Phillips Screw
> Turn signals=2x #6 1 ⅜”; 2x #6 2” Round Head Phillips Screw
> Frankenstein bolts replacements (if not using hardtop)=4x M8-1.25 X 25mm (+ washers to make flush)
> Wheel lugs (OEM)=16x M12-1.5 bolts, 21mm nuts
> Mirrors (M2, S800, et al)=???
ENGINE BAY
> Radiator panel=4x M6-1 x 20mm (+ washers to make flush)
> Fender bolts=???
> Valve cover=???
Obviously there are more that I'm not thinking of or haven't gotten to measuring. But if anyone out there has any additions, I'd gladly add them to this list.
BTW I got 99% of these from Gardner-Westcott. They have an excellent selection (especially in polished SS), good prices and no minimum. Recommended.
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