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Post by tonivines on Jul 20, 2019 12:55:09 GMT
Hi all, this may be a silly question but where can I buy a tension screw for a Quaterman QD 1 cone please? I'm upgrading my Regal RD40. Also I have bought a No. 14 spider and the centre hole does not have any recess for the screw head so a much longer screw would be required.
Any advice would be greatly appreciated.
Thank you all,
Toni.
P.S. Michael, I have recently bought your Mitra 'Call Of The Blues' cd. Wonderful stuff!
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Post by davey on Jul 21, 2019 11:53:58 GMT
If you're in the USA, Stewmac sell them. If you're in the UK, Stewmac still sell them but they take a month to get here. I may have a spare one.
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Post by Michael Messer on Jul 21, 2019 13:59:36 GMT
P.S. Michael, I have recently bought your Mitra 'Call Of The Blues' cd. Wonderful stuff! Thank you Toni, your kind words are much appreciated Shine On Michael |
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Post by tonivines on Jul 21, 2019 18:54:26 GMT
Hi, thanks Michael. If you do have one pm me with the price Inc' postage and how to pay you and I'll give you my address. I'm in Ipswich, UK.
Once again, many thanks,
All the best,
Toni.
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Post by davey on Jul 21, 2019 22:37:27 GMT
Toni, send me your address and I'll send you one, no payment necessary.
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Post by davey on Jul 22, 2019 9:28:49 GMT
Does anyone know what the actual size and thread of these screws are ? It seems bonkers to get them from the USA.
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Post by creolian on Jul 22, 2019 12:58:56 GMT
Both of my spider guitars use a 4-40 screw, 1.25 inches long. 4-40 screws are common for R/C model Builders and a good hobby supply will have them in small quantity packs. Very close to a #3 metric but not interchangeble without damaging threads. www.hobbylinc.com/htm/dub/dub176.htm |
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Post by davey on Jul 22, 2019 15:36:47 GMT
HI, are you in the USA by any chance ? I think we don't have that thread size here. We used to have Imperial thread sizes but metric's just about taken over.
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Post by esseff on Jul 22, 2019 18:12:26 GMT
440 is a fairly common size for non-structural use in American-built aircraft. I'll see if I've got anything lying around but I doubt there's anything the length you need. You can buy them in the UK (Okehampton, Devon) but there might be a minimum order quantity www.lasaero.com/products/article/DJK1UL |
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Post by tonivines on Jul 23, 2019 10:42:35 GMT
David, it has arrived and is correct for the cone. Thank you so very much and thanks to all that replied.
I'll take some pics of the project as we go!
All the best,
Toni.
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Post by davey on Jul 23, 2019 12:05:49 GMT
Good news, hope it goes well & shout if you get stuck, someone on here will know what to do.
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Post by esseff on Jul 24, 2019 5:22:46 GMT
Glad you're fixed up. The longest 4-40 screw I could find was only 3/4" so probably would have been too short anyway.
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Post by creolian on Jul 24, 2019 15:29:36 GMT
HI, are you in the USA by any chance ? I think we don't have that thread size here. We used to have Imperial thread sizes but metric's just about taken over. Hi Davey, Im in the rebuplic of New Orleans, close enough for jazz... I did a search for 4-40 in the UK and came up empty. A hobby hardware mfg has them here in 4 packs with nuts and washers for a couple dollars or so... I dont know if the mail order suppliers here will ship internationally, but the biggest one is Tower Hobbies. They will ship to the UK. Dubro 176 is the part # link ( a dubro for your dobro mr Dopyera ?... Im not sure what the purpose of that screw is other than to center the spider... I cant hear any difference with it completely loose or a quarter turn tight as recommended. A #4 screw and an M3 are virtually the same size with the M3 having a coarser threadpitch... ( i may have that backwards ) being a very low torque connection, on a new non collector guitar, I wouldn't hesitate to tap it to M3 or drill and tap for an incrementally larger size screw. I havent had the spring in my johnson guitar for at least 15 years... all best, jeff |
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Post by Stevie on Jul 24, 2019 18:56:50 GMT
I seem to recall that some Gibson hummer mounting screws are 4-40 UNC? They are at least the length needed? Not sure which head type is needed or whether it's critical? When I was still at work I only had to smile nicely to the Stores personnel!
Apropos another remark made previousl, (the "non-stressed" one), that's true although we mainly started at #6 and theoretically #8 was touted as something to try to standardise upon. The trouble with that was trying to use csk 8-32 in metal gauges thinner than the csk. You'd end up taking the top away from RivSerts! The point of that ramble is to remark that UNC and UNF were used extensively at EADS as well as Boeing et al. Interiors that is- can't speak for airframe and so on.
e&oe...
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