thinkpad nylon coated screw

INTRO
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so i decided i want to change my thinkpad x300 ram.

but is a bit hesistant i read that thinkpad is using nylon coated screw.
which lenovo recomends on replacing them once removed.

QUESTION
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is the ram bay used nylon coated screw also?

is the screw hard to remove?

is it hard to screw-in (re-install)?
eversince lenovo recommends using torque screw-driver if possible.

do i really need to replace the screw?
what did you guys do (replace the screw or not)? any problem with it afterwards (loose screw, stripped head)?

special precaution or tips?
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i think lenovo shipped with with 2 spare screw. but i'm not sure if i should use them right away. since that if there is any problem with the ram i had to open the bay door and replace the screw again

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thanks a bunch

 

Well, first of all, RAM in a Thinkpad is not replaced through a "bay door", instead, you have to remove the palmrest (which takes 4 screws, on the T400/T500/W500) - you won't have enough screws to replace them all. I think you should be fine reusing the screws, since you're just taking them out and putting them in once, not many times, which might wear away the coating and make the fit looser.

 

As per midnightsun said, you can reuse your screws. And if a threadlocker glue is available in your area you can use that too ( preferably loctite brand which i used when i'm assembling the screws of machines ) or cheaper alternative is using a normal teflon tape or pipe seal tape. this will keep the clearance between your screw thread and hole thread hold tight.
hope my suggestions help.
Also when you are tightening the screws, don't hold the screw driver at the handle. use your fingers to hold the shaft of the screw and turn from there. this will lessen the force you will exert on the screws.

 

The X300 has the ram on the bottom behind a cover, as many thinkpads do (apparently just few of the new models). There are just two screws to remove.
And, as the others said, I would not trouble about the threadlock, I never used it and took my thinkpads apart many times.
In the end I never lost a screw nor had any loose screws. Sure, it's not as beauty as with threadlock, but in the end you won't need it.

 

do you use new screw cupboard21?

by the sound of the post you're saying that you replace the screw with non nylon one...

 

Oh, sorry, I'm not that into English.
No, I never used new screws or threadlock when taking a notebook apart, I just take the old ones.
You should not trouble about the screws, nothing will happen if you reuse them, threadlock is just 'additional security'. Or can you imagine any case where the screws would losen in a notebook? There are nearly no vibrations and there is no force, they just have to hold together a bit of plastics.

 

how hard should we tighten the screw?
according to lenovo they say turn an additional 90 degrees after hitting the bottom? for plastic to plastic.. in some case they say turn additional 180 degrees O.O

but my bottom cover is magnesium... maybe the ram cover is plastic?

 

First of all, I think you're being too paranoid about this issue. All you need to do is get an electronics screwdriver kit, loosen the screws of the RAM cover, change the RAM and screw it back. As to how much you should tighten, well, you will know when the screw is in and will no longer turn unless you apply force to it, which you shouldn't. The screws are completely reusable and I didn't even know they are nylon coated. They just seem like regular screws.