i am actually thinking of putting an online shopping app on my site for tools and most specially screws. i have been getting a lot of inquiries for replacement screws from my readers! i am getting my screws from tokyu hands and nishikawa. Japan Hobby Tools also is thinking of collaborating with me.
I often go to Tokyu Hands and Nishikawa for the specific screws or materials I need, but I'm not sure if you can find any screws for the cameras or the lenses there... At Tokyu Hands, I once had to order a full bulk of five hundred screws to get only eight that I needed, because the screws are not the type of ones they handle regularly.
Apparently Tokyu Hands is narrowing the variation range of the items they handle.