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Good job! I'm sure you could sell them on eBay. If selling small quantities is an issue, sell a large lot and someone will probably come along that will resell those. Between all the DX# varieties

Well if anyone is interested in a set of Four (4) 16mm and one (1) 13mm M4.2 Pan Phillips Tapping Steel, Zinc Plated DIN 7981-C Let me know, had to buy a decent quantity for it to be cost effective.

It's a matter of degrees, I suppose.? There are differences in the shape of Philips, JIS, etc. holes that affect the max. torque and the reliability when one is using power drivers and/or hundreds of

You're probably right. I just remember the jet engine mechanics on the shop floor making a big deal about it and how they had separate drivers. Maybe they were having fun with the Engineer - "no THAT

Fillister is a head shape, not a drive type.

Thanks for the details Ant! Based on your measurements, I think I need an M4.2 screw size. Its diameter is 4.2mm and its thread pitch is 1.4mm. McMaster-Carr has some:

I believe that they are Philips head and certainly metric thread,? being from Japan. Possibly 6mm.

They might be. At first glance, they looked like Fillister head. But I’ve always had trouble distinguishing the two without actual drivers to test it with. L. Correction - I think they

More accurate measuring reveals the thread pitch may be 1.4mm. A hint for inserting self-tapping screws into old plastic is to first rest the screw in the hole then back the screw out slowly until you

According to the DX7 service manual the front panel screws are Bind(sic) Head Tapping Screw 4 x 16. The rear panel screw is Bind Head Tapping Screw 4 x 8. I have also removed them from my DX7 and

Depending on WHERE on the panel. There’s four that you take out, two at each end, to raise the panel on its hinge. Those screws are, in fact, ‘self-tapping’ or a variation thereof, simply

Op di 18 jan. 2022 om 13:23 schreef Bruce Wahler via groups.io <bw@...>: My experience with taking apart 1980's synthesizers has been that manufacturers use both self-tapping and

No, it doesn’t especially help. You missed a LOT of points and got most of it wrong. But, hey, whenever metric comes up anywhere, this type of ‘expert’ starts evangelizing. L. Sent:

A couple of things to try... first the Yamaha service notes often call out the individual hardware pieces by name/description. Also, there are so many parted out DX7's that the screws show up very

Ethan et al, Those screw checkers are for *tapped* holes.? That DIN standard is for a *self-tapping* screw.? The first thing is to figure out which type was used.? Here is a tapped style for

One more thing to be aware of. A lot of products coming out of Japan used the JIS screw head, which is not Pozidrive, nor is it Philips. Of course this doesn't matter if you're putting in new screws

Since Yamaha is a Japanese company, their synths were likely made (or at least designed) in Japan which uses the metric system of measurement and construction for everything, including screws, nuts,

My secondhand DX7 did not come with the 4 front panel screws or the 1 screw near the power switch. Anybody know what kind of screws these are? I understand the screw near the power switch may be

Interesting. Never heard of them. But now that I search for them, I'm even more inclined to replace the floppy drive on my Ensoniq EPS-M rack mount sampler. Thanks! Sent: Tuesday, January 11, 2022

I have fitted a Gotek in my Yamaha V50. Works fine once you get used to it. Just as annoyingly slow as my real floppy was in the old days, but much more reliable. And 100 floppies full of relatively