What size bolts are these?

[727G35]

The 2 wing nuts that hold on the airfilter, i lost both of them, also the rubber gasket inbetween the throttle body and bottom of the airfilter container, is that needed? Mines all ripped up.
Also the 2 12mm bolts that hols the distributor in. Iost one, so i need a size on that also.
And a fuel pump question. Whats your favorite?
Max 300HP a long way away.

[AZhitman]

Walbro 255 is your fuel pump answer.

Any car guy needs one of these: https://www.amazon.com/Bolt-Thread-Chec ... 210&sr=8-3

12mm bolts on a Nissan are typically 12x1.25 (seems wrong for a distributor), but if you still have one, you can take it to a store and get a matching one.

Yes, that rubber is necessary.

[727G35]

Walbro 255 is your fuel pump answer.

Any car guy needs one of these: https://www.amazon.com/Bolt-Thread-Chec ... 210&sr=8-3

12mm bolts on a Nissan are typically 12x1.25 (seems wrong for a distributor), but if you still have one, you can take it to a store and get a matching one.

Yes, that rubber is necessary.

For the fuel pump, check. I have one on the way, thank you.

I have a thing to check the size of the bolt needed, i just dont know the thread pitch if that matters.

My rubber peice has a slice in it, so when im at high RPMs the power just dies.
Can i buy a new one somewhere you know of?

[AZhitman]

Thread pitch absolutely matters.

Any local wrecking yard should have that boot, or check car-part.com. OR, call the dealer, get the part number, and search for one that way. I'm sure they're out there.