The reasons for this might sounds strange, but I believe they are sound:
1. I didn't want any shiny stuff on my FJ, no chrome, and no Stainless Steel.
2. SHCS don't "strip out", those Philips head M6 bolts can and will stripp out.
3. 20 years from now, if and when I have to replace any hardware, I should be able to lossen a rusted or damaged bolt with an allen wrench better than a socket.... plus the larger, higher head makes a great surface space for Vise Grips.
4. I love the Black Oxide look of the hardware
So far I have only reused a few of the original bolts, mainly the M10 sizes dealing with the engine and transmission, but all external bolts and interior bolts have and will be replaced from Hex Head to SHCS.
I read the Bolt thread, but I'm finding that M6 X 1.00- 16mm and M8 X 1.25 - 25mm covers about 85% of everything on the FJ.
of course use these with split washers and Flange Lock Nuts where needed.
I got everything very cheap from McMaster Carr.
1. I didn't want any shiny stuff on my FJ, no chrome, and no Stainless Steel.
2. SHCS don't "strip out", those Philips head M6 bolts can and will stripp out.
3. 20 years from now, if and when I have to replace any hardware, I should be able to lossen a rusted or damaged bolt with an allen wrench better than a socket.... plus the larger, higher head makes a great surface space for Vise Grips.
4. I love the Black Oxide look of the hardware
So far I have only reused a few of the original bolts, mainly the M10 sizes dealing with the engine and transmission, but all external bolts and interior bolts have and will be replaced from Hex Head to SHCS.
I read the Bolt thread, but I'm finding that M6 X 1.00- 16mm and M8 X 1.25 - 25mm covers about 85% of everything on the FJ.
of course use these with split washers and Flange Lock Nuts where needed.
I got everything very cheap from McMaster Carr.


(unfortunately, i'm well versed in that method of learning...)