xPaxton

I recently bought a 1999 LS400 and I’ve been working on it like crazy. I’m about to get an engine cover (vbank cover) (was missing when bought) and I don’t have the nuts and bolts to mount it. I have a picture from the manual of the 2 bolts and 2 nuts needed. Does anyone know where I can get these?

bradland

https://www.lexussouthatlantaparts.c...&searchString=
Under the diagram click VIEW MORE IMAGES to find the correct model.
It shows several part numbers for these bolts, write down what your looking for and take it to the nearest Toyota dealer.

oldskewel

iTrader: (1)

My '91 is completely different in that area. But in general, virtually every first-line fastener in the engine bay is M6-1.0 (the -1.0 is standard for M6, so can be skipped in the specification). That's a metric, 6mm thread outer diameter, 1.0 mm thread pitch fastener.
Most are class 8.8, but you can go to the next stronger level if you like, which is class 10.9.
Most bolts/screws are flange head. Almost all fasteners in this area are hex head.

So with all that for background, and considering that M6 are about the most common fasteners on any car, you might consider just buying an assortment (varying lengths) of M6 fasteners with those specs.

Since I don't like to waste time tracking down missing fasteners when I come across a need for one, I've got a few sets. Here's a nice one, from Amazon, class 10.9, with the zinc chromate (yellow / gold) anti-corrosion coating.

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Dorman 799-305D Pro Pack Metric Class 10.9 Hardware, 126 Pieces, 126 Pack

Like most fasteners you'll get in assortment sets, those are not flange head, but for most applications, that is not an important factor, and can be made up for with a washer if you want.

In addition, if you're cleaning stuff up with fasteners, getting an M6 tap and die will let you clean up the threads as needed.

xPaxton

Thank you so much!!

mikaelse

Yes good answer oldskewel.
Not that it is super important but it can be helpful to know that these M6 nuts and bolts typically use 10 mm tools to tighten.

oldskewel

iTrader: (1)

Yes, good info. So if you come across a nut/bolt that has a 10mm hex head, it is almost certainly going to be an M6 thread.

Similarly, if it is an Allen head (also known as a socket head cap screw, or socket cap recessed hex screw) screw, it will typically take a 5mm Allen key / bit / wrench.