SOHC.co.uk Forums > CB500/550
500 alternator stator screws - five out of six are solid.
Trigger:
I don't know were you get "JIS profile that ended in 2008". I still buy JIS screws from Honda and other suppliers up to a delivery this morning from Japan. ;)
McCabe-Thiele (Ted):
Essentially from reading up on ISO 8764 it appears the old dot markings on JIS screw heads has also been withdrawn as a requirement. It is also covered in an excellent article on Wiki that the Japanese have revised their industrial standards to move closer to Europe & USA specs. This appears to explain why many tools are marked as JIS PH3 for example.
As well as my previously quoted source this one is an interesting read.
.https://smallworkshop.co.uk/2022/10/01/japanese-screws-and-fasteners/#the-elusive-jis-screwdriver
McCabe-Thiele (Ted):
Here is a so called JIS set but the items are marked as JIS PH2 etc for Japanese Motorcycles etc as they have a different profile to standard PH2 tips - these are what I have but a different brand am I wrong in thinking they are JIS compliant?
Any links to original spec JIS screwdrivers welcome mine were cheap & are showing typical wear due to lack of hardening.
https://www.ebay.co.uk/itm/184042375191?hash=item2ad9c7c817:g:7EEAAOSwNlld0-E0&amdata=enc%3AAQAIAAAAwFDOaTf2rGXDY24ubtjQS7Z5U0RArznR6dQLtiXDAyDaAKjKxiODGs4TndqXpfnmXfiCYY8WQ46%2Bf0ju%2BDRR60ZtWYXx2Udz8yqMunio833nDF96HgP8b0TKEo4q9D4a401XpulAYOS6fZgTyMLU3bUto8F%2FVqmRZ9zOqykASPK8rdfoiCamNX9GnhuN81AvK%2BzAIeU74VrK9Afkq%2BpG1suNLVkLb51pSWRBvKThJGCKnxGArQ2b3D7nVUSeLXo43A%3D%3D%7Ctkp%3ABk9SR8LKlq2pYg
taysidedragon:
That last link from Ted (smallworkshop) was very interesting. I understand the changes that have been made now.
The Sealey JIS tool bits that I bought a few years ago definitely fit the old screws on my 400f better than anything else though so that's what I use.
Right at the end of the article it mentions Robertson Square drive. I'd never met these before 2019 when in New Zealand our campervan used them everywhere. I had to buy a set of drivers when our waterpump for the sink went bellyup. Widely used in USA I believe .
McCabe-Thiele (Ted):
I had to buy a Robertson Square Drive tool as all the side panel retaining screws on our Canadian made Hot Tub use them.
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