What is a JIS Screw?
The JIS (Japanese Industrial Standard) screw is commonly found on Japanese motorcycles and equipment. Also called cross point screws
It looks like a Phillips screw, but is designed not to cam out and will therefore be damaged by a Phillips screwdriver if it is too tight
Heads are usually identified by a single dot or an “X” to one side of the cross slot
Does your Phillips screwdriver “cam-out” and damage some screws?
If so, it may NOT be a US Phillips® screw – it may be a “JIS” (Japanese Industrial Standard) type!
Most people and companies outside of Japan have absolutely no idea what a JIS screw is, with a striking similarity to the appearance to Phillips screws JIS screws are often damaged in removing and installing because most people use a Phillips screwdriver on them when they should be using a JIS screwdriver.
JIS screws and drivers are not designed not to cam-out like Phillips do
https://www.youtube.com/watch?v=lMwewxkvSg8https://www.youtube.com/watch?v=Fpss5lf6b_g
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