Replies

1. 
   Kyle | Nov 03, 2003 10:25pm | #1

   the hanger should have stamped on it what nails are required.

   just to clearify something... They do not have to be "special simpson nails" just the nail that is stamped on the hanger 12d, 16d or whatever.

   If I remember right for normal loads fill all the round holes. for max. loads fill the round and the triangle holes.

2. 
   BossHog | Nov 03, 2003 11:15pm | #2

   As Kyle said, the nails do NOT have to be "special simpson nails". Their charts spell out what kind of nails you need. Take a look at this chart from their website:

   View Image

   If you look at the Second line, you'll see a LUS24 call for 10D nails in the header, and 10D nails in the joist. (The angled ones)

   If you look farther down, you'll see that most of the hangers call for 16D commons. Sinkers aren't allowed in general, as they have a smaller shank diameter.

   If you used 12D sinkers, they technically aren't allowed. But they might fly, depending on the loading situation. You canncall Simpson at (800) 999-5099 and ask for the engineering department. They can review the situation and make recommendations.

   Even at that, you local building inspector may not buy it. It might be a good idea to check with him.

   Nearly all men can stand adversity, but if you want to test a man's character, give him power. [Abraham Lincoln]

3. 
   BobKovacs | Nov 03, 2003 11:38pm | #3

   Agreed with the previous posts.  Just as a note, though- the joist bearing in the hanger is NOT meant to impart any strength to the assembly- the nails provide all of the strength, if you can believe that.  That's what we were told by a Simpson rep in a training class, and it's also why you'll find hangers with no bottoms (pairs of clips).   The bottom provides positioning assistance, and creates a single unit which is easier to install than two individual clips.

   Bob

1. 
   BossHog | Nov 04, 2003 04:05am | #4

   "...he joist bearing in the hanger is NOT meant to impart any strength to the assembly- the nails provide all of the strength..."

   The Simpson rep who told you that is totally wrong. The seat provides the majority of the support.

   "That's what we were told by a Simpson rep in a training class, and it's also why you'll find hangers with no bottoms (pairs of clips)."

   Like what kind of hanger? I've never seen one that was meant to be used like that.Lead me not into temptation. I can find it myself

4. 
   RichMast | Nov 04, 2003 04:28am | #5

   There is a table on simpson's site http://www.strongtie.com/products/connectors_list/Nails.html which has alternate nail combinations and what strength reduction, if any, would be required.  Unfortunately I couldn't find anything in the tables for 12d sinkers.  Not that they might not be able to come up with something if you email the factory.  The fact that they don't sell 12d sinkers may make the answer harder to get, but they do list values for nails they don't make.

   On http://www.strongtie.com/products/connectors_list/LUS.html there are general notes for the LUS (I'm guessing that's what you are using - you didn't say) which say

   INSTALLATION

   • See General Connector Installation.
   • Use all specified fasteners. See General Notes.
   • Nails must be driven at an angle through the joist or truss into the header to achieve the table loads.
   • Not designed for welded or nailer applications.
   • 16d sinkers (9 gauge x 3-1/4") may be used where 10d commons are specified with no reduction in load. Where 16d commons are specified, 10d commons or 16d sinkers (9 gauge x 3-1/4") may be used at 0.84 of the table load.
   • With 3x carrying members, use 16d x 2-1/2" nails into the header and 16d commons into the joist with no load reduction. With 2x carrying members, use 10d x 1-1/2" nails into the header and 10d
     commons into the joist, reduce the load to 0.64 of the table value.

   I can't say what the answer will be, but I would poke around the Simpson site some to see what you can come up with.  Hope this helps.  Rich.