ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  
Pages: 1 2 [All]   Go Down

Author Topic: Which style of fastener do you prefer?...  (Read 8480 times)

Kevin Pippen

  • Newbie
  • *
  • Offline Offline
  • Posts: 47
Which style of fastener do you prefer?...
« on: January 17, 2008, 10:04:16 am »

I would like opinions from experienced cabinet builders that have used both of the styles shown below and which style of fastener they prefer and why... I have read that "style B" is the better choice for MDF, HDF, etc.,...but I'm particularly interested in their use for securing drivers and access panels to Birch ply... In addition, I would appreciate in any tips-n-tricks for installing either style... Also, if anyone has a better solution to these please post your suggestions and a picture if possible...


STYLE A (STANDARD T-NUT)

http://i206.photobucket.com/albums/bb243/pippenk/TNUT1.jpg

STYLE B (HURRICANE, PROPEL, OR PROPELLER NUT)

http://i206.photobucket.com/albums/bb243/pippenk/TNUT2.jpg


Thank you in advance for your comments and suggestions!...

Kev



Logged
turn on, tune in, drop out

http://www.teamaai.net/kevin/nipper.jpg
Hey Nipper,...we gotta have more cowbell!!!

John Halliburton

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1785
Re: Which style of fastener do you prefer?...
« Reply #1 on: January 17, 2008, 11:56:56 am »

"It Depends".

1.  Both will strip out.
2.  The propel nut in MDF or harder sheet goods is a bit easier to install.
3.  The Tee-nut is faster, and comes in more varieties.
4.  If you have no room to pound a Tee-nut in with a hammer or hammer-like device, you can draw them in with a mating screw.  I find this easier with the propel nuts however.
5.  If pounding a Tee-nut, do so on the bench to the piece in question before installing, they'll tend to go in better and straighter.
6. If you are drawing either in with a cordless drill-driver bit, use a standard flat washer and an oversized fender washer on the installation bolt/screw, as it will deform the plywood/MDF less when you tighten it down.  It's a cosmetic issue mainly.
7.  Get them with the longest barrel that will fit in the thickness of material used-they stay in better.
8.  Spritz compressed air and check for debris in them before final assembly, it will cut down on mangled threads.
9.  "Hopper Feed" style Tee-nuts can give you more clearance for mounting around speaker cutouts-the prongs are paired and opposed vs. evenly spaced around the flange.

Damn, almost made a "Top Ten" list out of this.   Razz

Best regards,

John
Logged

Al Limberg

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1482
Re: Which style of fastener do you prefer?...
« Reply #2 on: January 17, 2008, 12:08:59 pm »

10. A drop of West System epoxy carefully applied to the surface that mates with the panel will prevent 'fallout' after assembly.
Use caution not to let any epoxy enter the threads!

?;o)
Al
Logged
If the automobile had followed the same development cycle as the computer, a Rolls-Royce would today cost $100, get one million miles to the gallon, and explode once a year killing everyone inside - Robert X. Cringely

Kevin Pippen

  • Newbie
  • *
  • Offline Offline
  • Posts: 47
Re: Which style of fastener do you prefer?...
« Reply #3 on: January 17, 2008, 12:19:50 pm »

John Halliburton wrote on Thu, 17 January 2008 10:56

9.  "Hopper Feed" style Tee-nuts can give you more clearance for mounting around speaker cutouts-the prongs are paired and opposed vs. evenly spaced around the flange.

Hi John,

Thanks for the advice!... Is this the style you were refering to?...

http://i206.photobucket.com/albums/bb243/pippenk/TNUT3.gif

I like that they are blind so if a little epoxy is added to the shaft and base it won't get inside...

Thanks!

Kev


EDIT: Hello Al,...Thank you for the advice!...Smile


Logged
turn on, tune in, drop out

http://www.teamaai.net/kevin/nipper.jpg
Hey Nipper,...we gotta have more cowbell!!!

John Halliburton

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1785
Re: Which style of fastener do you prefer?...
« Reply #4 on: January 17, 2008, 01:25:19 pm »

That is the style to which I referred.
My feeling WRT epoxy is mixed(no pun intended).  It has benefits, but when you have to remove a stripped Tee-nut, the epoxy can make a bit of a mess tearing more of the plywood/MDF out.
The Propel nuts are less inclined to fall or pop out though.



Best regards,

John
Logged

Kevin Pippen

  • Newbie
  • *
  • Offline Offline
  • Posts: 47
Re: Which style of fastener do you prefer?...
« Reply #5 on: January 19, 2008, 09:20:05 am »

John,

In your opinion which is better for birch ply "hopper" or "propel"?...

Kev
Logged
turn on, tune in, drop out

http://www.teamaai.net/kevin/nipper.jpg
Hey Nipper,...we gotta have more cowbell!!!

John Halliburton

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1785
Re: Which style of fastener do you prefer?...
« Reply #6 on: January 19, 2008, 09:31:15 am »

My default is the hopper style Tee-nut, the propel nut for tricky spots where you may not be able to pound in a Tee-nut, which is the real decision maker-both do what they're supposed to do.

Best regards,

John
Logged

Kevin Pippen

  • Newbie
  • *
  • Offline Offline
  • Posts: 47
Re: Which style of fastener do you prefer?...
« Reply #7 on: January 19, 2008, 09:33:37 am »

Hello John,

Thank you very much!...

Kev
Logged
turn on, tune in, drop out

http://www.teamaai.net/kevin/nipper.jpg
Hey Nipper,...we gotta have more cowbell!!!

Tim Padrick

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 5008
Re: Which style of fastener do you prefer?...
« Reply #8 on: January 20, 2008, 08:10:29 pm »

A couple of #4 tapping screws will prevent tee-nut spin and pushout.

Kevin Pippen

  • Newbie
  • *
  • Offline Offline
  • Posts: 47
Re: Which style of fastener do you prefer?...
« Reply #9 on: January 20, 2008, 08:53:45 pm »

Hi Tim,

Thank you for posting and the excellent advice!...

Kev
Logged
turn on, tune in, drop out

http://www.teamaai.net/kevin/nipper.jpg
Hey Nipper,...we gotta have more cowbell!!!

Scott Deeter

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1055
Re: Which style of fastener do you prefer?...
« Reply #10 on: January 21, 2008, 12:11:04 am »

Tim Padrick wrote on Sun, 20 January 2008 20:10

A couple of #4 tapping screws will prevent tee-nut spin and pushout.


Could the screw idea work on the Prop nuts with notching them on each side or I should say making notches across from one another?

index.php/fa/13749/0/




Logged
Take care,
Scott Deeter

Mike {AB} Butler

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 2025
    • http://www.3alchemy.com
Re: Which style of fastener do you prefer?...
« Reply #11 on: January 21, 2008, 07:47:31 am »

Sure you could, Scott, but is it really worth your time (grinding the edges away from each t-nut) to do it?
I've found that even with the screws on the outside edge, the protection and stability afforded is good. Another thought about your notch idea is that it would put the screws close to the drill hole.. making for a weaker foundation for both screws and t-nuts..
To the OP: I use exclusively the legged t-nuts for the last 35 or so years.. with no issues. I have used the screw-in attachment method described by John successfully as well.. but have found a better method is that being as most t-nuts are near openings.. a pair of vise grips or a small bar or C clamp does a great job at swaging in t-nuts. Just use a small piece of bar stock on the opposite side of the wood from the t-nut.. especially with the vise grips. A bit slower than pounding in.. but more effective..
Last, I have used the epoxy/glue/silicone rubber method for attaching/ permanentizing t-nuts.. and I have found the screw method, or securing a block of ply above the t-nut with 2 - 4 screws straddling the t-nut to be far faster.. with better hold results..
Regards,
Logged
Mike Butler,
Principal, Technology and Operations,
Dascott Technologies, LLC

John Halliburton

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1785
Re: Which style of fastener do you prefer?...
« Reply #12 on: January 21, 2008, 11:43:09 am »

Tim,

If you want to screw a Tee-nut in, just use weld nuts with small holes already in the flange:

www.mcmastercarr.com   search catalog number:  90611A300

Different flange diameters are available too.

Mike,

I've used both methods, but find when my main assembly tool is a cordless drill, the method of drawing them in with a bolt attached to a driver on the drill is quicker-there was a point where we had our machinist make a driver bit we could fasten threaded stock into and have it mimic a driver bit holder.

Best regards,

John

Logged

Mike {AB} Butler

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 2025
    • http://www.3alchemy.com
Re: Which style of fastener do you prefer?...
« Reply #13 on: January 21, 2008, 02:13:12 pm »

John,
Good points. The thing I don't like about the drill is that the torque will sometimes cause the teeth to get bent.. and the t-nut doesn't adhere/bite as well...
Regards,
Logged
Mike Butler,
Principal, Technology and Operations,
Dascott Technologies, LLC

John Halliburton

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1785
Re: Which style of fastener do you prefer?...
« Reply #14 on: January 21, 2008, 04:07:13 pm »

Mike,

Who ya telln' ta get bent? ;>)

Yes, start slow, and a clutch on the cordless can be helpful-plus I use some fender washers to spread the pressure out to draw the nut in more evenly.

Best regards,


John
Logged

Duane Massey

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 2189
    • http://www.ozknozz.com
Re: Which style of fastener do you prefer?...
« Reply #15 on: January 23, 2008, 01:01:06 am »

Excellent advice from everyone; I would add the obvious, which is to install screws in the T-nuts before you paint. I agree on the "wing" T-nuts, much better product than the three-legged creatures.
Logged
Duane Massey
Houston, Texas, USA

Kevin Pippen

  • Newbie
  • *
  • Offline Offline
  • Posts: 47
Re: Which style of fastener do you prefer?...
« Reply #16 on: January 27, 2008, 08:30:02 am »

I found this company that seems to be a good source for several different styles of T-Nuts... http://www.stafast.com

Kev
Logged
turn on, tune in, drop out

http://www.teamaai.net/kevin/nipper.jpg
Hey Nipper,...we gotta have more cowbell!!!
Pages: 1 2 [All]   Go Up
 

Page created in 0.111 seconds with 18 queries.