Possible T-nut group buy.

[bigparsnip]

Hi, I'm quite new to this whole speaker building thing, but I have been looking about for a good way of securing my drivers to teh front pannel of my speaker cabintes, and the simplest thing I seem to have found to do this would be to use T-nuts and some M4 bolts (nice black, socket cap ones). The only problem I have found is that the only place I can seem to find the T-nuts in small quantities is Wilmslow Audio, who want to charge £2.00 for just eight!



So, I have been having a bit of a look about and I have indeed found a cheeper scource (only about 3p each), the only problem being they come in boxes of 3000 (just a few too many for what I will need).

So, what I was wondering is if there were any other speaker builders out there who would want to split the price of a box with me (I guess it would realisticaly take about ten people in total, to bring the price down to a fairly reasonable £9.00 for 300 fastners).

If anyone would be intrested in this, let me know, as I really begrudge paying so much for these from Wilmslow just because I only want a small amount of them.

[bigparsnip]

Actualy, I also saw these as well, which may work , and they only come in boxes of 1500, at around the same price per part (about 3p), so if people are interested in these as well, they may be suitable too.

[stee-b]

Hi Bigparsnip, what I do for fastening drivers is spot through/mark the holes, drill clear on M4 (4.5mm or so) and from the back face open the hole to a size less than a M4 nut (7mm) by 3mm deep and press/knock a nut in. A bit of glue may be added if required.
HTH
Steve

[moving_electron]

People seem to not really like the T-nuts and prefer somthing that is called a hurricane nut at Parts express.

There are a few threads where this is discussed. Search diyaudio for hurricane nuts and you will get a few threads where people discuss there preferences.

[richie00boy]

bigparsnip,

Check out your local B&Q!!! I bought some t-nuts from there, M5 I think, but pretty sure they had M4 as well. I think a packet of 8 cost 75p

[JensRasmussen]

Hi,

In Denmark they are about 1kr/nut = 0,16$/nut.

Take a look at this picture from one of my friends website

http://www.mountain-environment.com/wallproject.html

\Jens

[azira]

Most speakers are made from MDF or Particle board. Driver cutout lips are usually around 1/2" (12.5mm). It seems to me that knocking a Tnut in place would be prone to chipping the inside lip or worse, cracking the driver cutout. I've never tried them granted..
Is this actually untrue?
--
Danny

[BrianGT]

Originally posted by bigparsnip
Hi, I'm quite new to this whole speaker building thing, but I have been looking about for a good way of securing my drivers to teh front pannel of my speaker cabintes, and the simplest thing I seem to have found to do this would be to use T-nuts and some M4 bolts (nice black, socket cap ones). The only problem I have found is that the only place I can seem to find the T-nuts in small quantities is Wilmslow Audio, who want to charge £2.00 for just eight!

If you want, I can order them from Parts Express or McMaster-Carr and ship them out to you. I could also order bolts to go with them. Let me know exactly which ones you want, and I can find some pricing information. I won't charge you anymore than it costs me to obtain them and paypal fees. Shipping would be $10 if they all will fit in one of those Global Priority envelopes.

EDIT:

Here is some pricing for these M4 tee nuts:

$10.20 for 6mm barrel height for 100 pieces
$11.00 for 8mm barrel height for 100 pieces

There are cheaper prices here for imperial sizes, and I can also get you matching bolts/nuts.

--
Brian

[bigparsnip]

I guess I'll have a look at B&Q first if people have seen them there, as the postage costs would probably make things of a similar price to getting them over here I imagine (I only relay need 40 or so at the minute). Brian, I also take it that the ones you would be able to get hold of would be in imperial sizes (or worse) so getting the ones that will fit my allen key's may prove a bit of a problem (or can you get metric fixings over there these days?)

[BrianGT]

Originally posted by bigparsnip
I guess I'll have a look at B&Q first if people have seen them there, as the postage costs would probably make things of a similar price to getting them over here I imagine (I only relay need 40 or so at the minute). Brian, I also take it that the ones you would be able to get hold of would be in imperial sizes (or worse) so getting the ones that will fit my allen key's may prove a bit of a problem (or can you get metric fixings over there these days?)

Go to www.mcmaster.com

They have a wide selection of parts, in imperial and metric sizes.

For the T-nuts, you need to search for tee nuts. For the bolts, search for Socket Head Cap screws.

They also sell allen keys, which aren't too expensive. I usually buy a couple when I order bolts, because they are too easy to lose.

I like these things myself:
http://www.diyaudio.com/forums/showt...835#post324835

--
Brian