Author Topic: Parts and repair  (Read 216 times)

Offline Philly73rhodes78

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Parts and repair
« on: August 21, 2020, 06:40:03 PM »
Anyone know the screw size of the screws that hold the harp in the the Mark I?  I know its a regular screw. VV charges a buck a piece, not to mention the high cost of S/H.  If I found out i will go to Home Depot and pay a buck for a box of 50.

Offline ummagumma

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Re: Parts and repair
« Reply #1 on: August 22, 2020, 07:25:01 AM »

 yeah my MK1A just has regular Robertson headed woodscrews. But they are probably not original

Offline sean

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Re: Parts and repair... Harp Mounting Screws.
« Reply #2 on: August 23, 2020, 12:34:21 AM »

If you have an early Mark I piano with wooden harp supports, the harp is held down with screws similar to modern sheet metal screws.  I would buy Round Head Phillips #12 sheet metal screws, 1" long.

Zinc plated


or here is your box of fifty:


If you have a Mark I piano with aluminum harp supports, the screw used is a plain steel pan-head phillips screw with #12-24 threads, length 0.850" - a 3/4" or 1" length will work fine, but 1.250" screw will bottom out on the aluminum extrusion.  The original screws were self-tapping, but you don't need to cut new threads, so just get a plain screw.  The original screws are not stainless steel.

« Last Edit: August 23, 2020, 12:36:04 AM by sean »

Offline pianotuner steveo

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Re: Parts and repair
« Reply #3 on: August 23, 2020, 06:13:52 AM »
The price of screws has gone way up the last couple of years. You may get a few for a buck these days, but not a box full. Do you have any least 1 that you can bring to a store to match up?
« Last Edit: August 23, 2020, 06:15:50 AM by pianotuner steveo »
1960 Wurlitzer model 700 EP
1968 Gibson G101 Combo organ
1975 Rhodes Piano Bass
1979 Wurlitzer 206A EP
1980 Wurlitzer 270 Butterfly Grand
2004 Hammond XK3
2009 73A Rhodes Mark 7
2009 Korg SV-1 73
2017 Yamaha P255
2020 Kawai CA99
....and a few guitars...