[SOLVED] How can I know if a Laptop screw is Philips or JIS?

[Rodion15]

I've been given a screwdriver set at work, intended to repair PCs and laptops. I noticed some of the heads are JIS while others are Philips. I learnt that JIS is intended for Japanese devices?.
How can I know (if possible at mere sight) if a screw is Philips or JIS? Such as in a Toshiba or Sony laptop, which are Japanese.

Any advise much welcome.

 

[USAFRet]

I've been given a screwdriver set at work, intended to repair PCs and laptops. I noticed some of the heads are JIS while others are Philips. I learnt that JIS is intended for Japanese devices?.
How can I know (if possible at mere sight) if a screw is Philips or JIS? Such as in a Toshiba or Sony laptop, which are Japanese.

Any advise much welcome.

"JIS screws are most often identified by a dimple or an X on the screw head: "

JIS vs Phillips screwdrivers and Where to buy a JIS screwdriver. | Helping you work smarter not harder

Most people don't know that there are multiple screw types that look like the traditional Phillips. The most popular of which is the JIS (Japanese industrial

rtstools.com

Does one of the bits fit into the screw head?
If so...close enough!

 

[R_1]

in laptop screws I have never seen a small screw strip even with threadlock installed.
JIS is for machinery, Motorcycles, tractors, you know big screws.
phillips are rounded at the inside corners, JIS has hard 90 degree angles on the screw.

 

[britechguy]

Does one of the bits fit into the screw head?
If so...close enough!

Yep. We're not talking about fasteners where any significant amount of torque is involved.

If the screwdriver fits, use it.

(The grand PITA are Y-head screws, still not used often, thank heaven!)

 

[Rodion15]

These JIS screwdrivers lock into the Philips screws, but I heard you can easily strip them. Thanks Judicious for your answer. So it seems I won't find any of these JIS screws on laptops. I just won't use these JIS then. Cheers. I'll wait a bit more for answers though.

 

[Rodion15]

in laptop screws I have never seen a small screw strip even with threadlock installed.
JIS is for machinery, Motorcycles, tractors, you know big screws.
phillips are rounded at the inside corners, JIS has hard 90 degree angles on the screw.

Thanks a lot. Quite clarifying