Other Stuff > Tricks & Tips

I wondered what the dot was on a japanese screwhead......

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Andrew-S:
Its news to me, but may not be for many of you - apparently it identifies a JIS (Japanese Industry Standard) screwhead and needs a JIS screwdriver, not Phillips head.....here's why:

 https://www.youtube.com/watch?v=VpqUhIZ-EJo&feature=youtu.be

Trigger:
What a load of yank waffle. I stock thousands of JIS screws and some have a dot and some don't.
I never use a JIS screwdriver and only own a couple of T bar ones. I mainly use PH3,PH2 and just grind the tip off, a lot cheaper and have only failed to get a JIS screw out when someone has had a go before me ;)


This is all I have ever used

cooleronthecoast:
I bought a set of JIS screwdrivers last year and use them all the time now on my bike.  They aren't any dearer to buy than a Philips or crosshead driver, I'd recommend anyone with a Jap bike to get some.

Trigger:
You must of found a cheap supplier of JIS screwdrivers  :o I pay about £3 for ten PH3 bits, which can be used in a screwdriver attachment, in a socket to torque to spec. How do you torque a JIS screw with a screwdriver ?

Arch stanton:
With a torque screwdriver.

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