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Graham Phantom Mounting Bolts - Where to Get Them?

So I’m a notorious roller. Tubes. Cartridges. Tonearms. Cables. If it screws or plugs into something, I’m gonna roll it, and often (this extends into relationship difficulties too). Apparently I’m also really bad at somehow losing all these various fastening screws & bolts. Now I’ve somehow managed to lose one of the four LONG threaded bolts (Allen socket head) used to secure the Graham Phantom II Supreme base to an armboard.

Do any of you wise analog angels know where these bolts could be sourced, or at least what the specs/dimensions are? I’ll try contacting Graham after exhausting all other options, because I’d like to find a replacement before the next Ice Age. It’s a really nice tonearm that deserves to be used. I even have three (3!!) wands for it. Surprised I haven't lost one of those yet.
128x128mulveling
atmasphere's avatar
atmasphere
11,793 posts
 
Take one of the existing bolts to Ace Hardware or similar hardware store. Ace has a bolt sizing bit that allows you to sort out what thread it is- and if its metric or American thread.
They may well have something like that in stock! But if they don't at least you'll know the thread sizing. That will make it easy to find.
mulveling's avatar
mulveling OP
1,895 posts
 
@atmasphere 
Haha, that sounds incredibly reasonable - will do! Thanks, Ralph. 
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islandmandan
1,260 posts
 
McMaster-Carr will no doubt have it id Ace doesn't.

Dan
millercarbon's avatar
millercarbon
12,531 posts
 
It is an off the shelf part, of that you can be sure. You just need to find the right shelf....
joenies's avatar
joenies
258 posts
 
The installation instructions I got with my Graham says:
Drill four tapped holes to accept either #4-40 or #6-32 screws, depending on your preference. The 4-40 size will give a little more adjustment range with Custom Mount.

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