[YLE118]

Unfortunately the JIS standard was phased out and merged with the ISO standard for Phillips screws. I'm sure there's a detail I'm missing about how that was done, but it's harder to find JIS stuff than it used to be. Supposedly the new Phillips standard includes part of what made JIS work so well.

Some older friends who told me stories about people ruining JIS fasteners on bikes and motorcycles because they assumed it was just a Philips. I think the depth of the point is part of the distinction and it causes the drivers to not have adequate contact with the screw head.

[BenjiWiebe]

Yes, I see that fairly often. A lot of powersport carburetors are Japanese (even for non Japan brands of ATVs) and use JIS screws.

And very very often the owner has tried to take it apart with a Phillips screwdriver and damaged the fasteners as a result.

I have a JIS screwdriver from Vessel that works really well.