never heard of this before

[Jonesy]

I've never heard of this, that Philips screws on metric bikes are really JIS type screws, and that's why they strip easy. Has anyone heard of this before, not me and I've been horsing around with them since early 70's. Stripped many of them since then.

JIS is Japanese Industry Standard [/SIZE]

http://goldwingdocs.com/forum/viewtopic.php?f=18&t=20082

 

[rhino 2]

Yep, knew about that years ago, Some JIS screws have a dot stamped on the head...

 

[GARYD]

Yep, read a favorable review in MCN about 5 or 6 months ago.

Also read a favorable review in MCN about this special pair of pliers that's suppose to be able to remove all types of stripped head screws and bolts-especially round head screws.

I bought a pair, but haven't had a chance to try it out, but the concept is there.

That's why I love MCN - it gives you a no bullshit review on motorcycles and parts and anything else related to motorcycles-even medical advice.

 

[rhino 2]

Just to add, If you ever work on older English bikes, You'll need a set of Whitworth's...:gah:

 

[Jonesy]

Just to add, If you ever work on older English bikes, You'll need a set of Whitworth's...:gah:

That I knew, worked at a company that made craftsmen hand tools, for 12 years. Got everyone we made most of common ones in doubles. not many whitworths left, lost over time.

 

[Gorilla]

Yep the JIS screw may look the same but it is different. They are very easy to knock the edges off unless you are using a JIS screw driver. Have not gone out and purchased any because luckly I can gt most out by being careful with the phillips.

 

[jackthemachinist]

Anybody that worked on Japanese bikes back in the '60s and '70s probably ran into this problem. The radius at the bottom of the "cross" is larger on Japanese screws and (therefore) not as deep as an American Phllips. You can usually make an American Phillips screwdriver work fine by grinding or filing a little bit off the tip of the point. Take a little at a time and check your work as you go. Quality screwdrivers with a hardened tip work best (but are, of course, harder to grind/file.) As noted previously, these screws are usually marked with a dot on the head. The best way to remove these screws is with a Japanese hand (hammer-type) impact driver. They usually come with the proper tip and the hammer blow drives the tip into the cross.

Hope this helps.

 

[rhino 2]

While we are on the subject of odd tools, Go to' Kaleco auto.com... They got it all..

 

[oneup]

in metric countries this has been the case for years. but in this part of the world we use an american invention in metric called posidriv. the philips has an inherent design fault that the sides of the slots are on an angle, not straight up and down, the Posidriv, has a straight parallel slot.
still many people just assume any screw with a cross shaped head slot is a philips. A posi screw with a good posi driver will stick together without falling off making those hard to get into position screws a piece of cake to do.
a bit of reasearch just before i posted this tells me the posidriv patent is owned by the same USA company that owns philips head.
my work was still using phillips head drivers in posi screws till i started there.
the right tool for the job makes a big difference.
PS a Posi is easily identified by a light cross at 45 degrees to the slot cross/

 

[Ozarkryder]

Was working on somthing in the garage, asked my wife for a Phillips screwdriver. She asked ,"Is that one with a plus or minus?":Shrug:

 

[RcSuD]

Why not do what we do in Canada? Throw out all those crappy Phillips screws and use Robertson instead.

 

[jackthemachinist]

Was working on somthing in the garage, asked my wife for a Phillips screwdriver. She asked ,"Is that one with a plus or minus?":Shrug:

I LOVE it!!

 

[werewolf]

Was working on somthing in the garage, asked my wife for a Phillips screwdriver. She asked ,"Is that one with a plus or minus?":Shrug:

I pretty sure she is related to my better half

 

[DTR 11TG]

Was working on somthing in the garage, asked my wife for a Phillips screwdriver. She asked ,"Is that one with a plus or minus?":Shrug:

I haven't had a wife around in a while, but I think that sounded like a good question & a good description of the different typespepper