Front undertray fixings

Hi can someone tell me the correct fixings for the front undertray (below steering rack) as the welded tabs appear to be threaded but they are not m6 or m8, m7 seems unusual.


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Don't forget you can have 0.75 or 1.0 threads.

Think they are 0.75 from memory but could be wrong.

Try a tap die to find out which one, fit SS set bolts as they don't corrode

Tony

 

M6x0.75 gold Zinc 25mm long on mine,
YMMV (Your Mileage May Vary) - I think a few may be 20mm long too

8.8 should be adequate strength to hold

 

How many are needed?
Is this the screw - eBay item number:291186466249
M6 X 0.75 X 25 Metric Fine 8.8 Grade High Tensile Yellow Zinc Hex Head Sets
M6 x 0 75 x 25 Metric Fine 8 8 Grade High Tensile Yellow Zinc Hex Head Sets | eBay

 

YMMV ? You Make Me Vommit = isn't very nice

 

For my L series I use standard M6 metric slotted flat head screws bought here:

Becherschrauben Auswahl: M6x8 - M6x50 EDELSTAHL A2 Rundkopfschrauben Schlitz | eBay

They are exactly the same style as the original M5 screws used on the inspection hatches on the larger bottom under tray so I assume this type of screws also were used on the front under try. They are also on the fiber glass inner panels etc. Unfortunately, the ebay screws are stainless steel and I have not been able to find the screws in ordinary steel.
Best regards

Peter


Best regards

Peter
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Thanks Peter that is really handy, for my 246 Dino also!


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Brian,
A2 stainless in the UK have a good selection of these, mushroom head and close to you.
I've turned these down to be the same as the original low profile italian slot machine screws.