COrrect bolt sizes for oil retrun line for 14b/16g 1g setup?

[Spoolin4Ever]

Sure there are 5 threads asking this, but no 100% clear answer; what are the correct bolt sizes for the oil return line? I need to know both up on the turbo, and down on the oil pan.

I see it says use lock washers up top on turbo, and use flat or crush washers down below.

I see 3 bolt sizes mentioned within the various threads:

They are saying either M6x1.00x16 or M6x1.0x25 for bolting to the turbo,

M8x1.25x16 for down below?

So someone give me the right answer and we will all benefit! Yeah!

 

[gofer]

Turbo Oil Drain Line to Oil Pan
(2) bolts, (2) lock washers, and (2) 18mm washers
shaft diameter x thread size - 6mm x 1.00mm
length - 25mm
thread length - 18mm
head size - 10mm
hardness - 7

Turbo Oil Drain to Turbo
(2) bolts & (2) lock washers
shaft diameter x thread size - 6mm x 1.00mm
length - 25mm
thread length - 18mm
head size - 10mm
hardness - 7

They are basically the same bolts they just use different hardware depending on which end of the oil drain you put them on.

 

[GsXtC21]

So they use a M6x1.25 bolt...?

 

[gofer]

M6 x 1.00 x 18