Thread: Nail gun into Pryda joist hangers

Have you seen the ad on TV where the apprentice is firing the nails into plywood and does not see the metal bracket behind the ply.

Well it bounches back at him and lodges in his head and this is what can happen to you .

Use the hammer safer and easier no matter how many brackets you have to do.

From http://www.pryda.com.au/uploads/Prod...rs%200708.pdf:

Machine Driven Nail Use – General Note
32x2.3 mm Duo-Fast C SHEG (ie: screw hardened electro galvanized) machine driven nails (code D40800) may be
used instead of the specified 35x3.15 mm Pryda Timber Connector Nails to fix Pryda connectors provided that:
* 20% more nails are used (eg: 5 instead of 4, 4 instead of 3, 3 instead of 2) or alternatively, design capacities are
to be reduced by 20% where the same number of nails are used
* the machine driven nails are driven at nail spacings and edge distances similar to the hole pattern but these nails are not driven into the holes

Sorry, wrong document - that one is for tie down.
You want this one: http://www.pryda.com.au/uploads/Prod...oot%200708.pdf

Gun nails through joist hangers works, but any amount of skew from perpendicular dramatically increases the odds of ballistics. Eye protection is an absolute must, including bystanders, even only 'remotely' nearby. A full face shield is advisable.

Fixing Pryda joist hangers with gun designed to handle the job is a breeze, if you are getting jams and ricochets the the gun is not up to it, I have a Max CN565 coil nailer it has fixed approximately, 1000 joist hangers and has not missed a beat. It won,t come cheap between $600-700, if you only have a small job then go a rent the right gun, also standard nails are not hardened as are connector nails

china

Thanks all for the warnings. I take it in summary that I'm not using the right gun or the right nails. I do have heavy eye and ear protection though.

It's interesting really cause you see all these tradies on site with no ear, eye or mask protection. I guess at least they have the right tool.

I wonder who is at greatest risk.

wja, I agree it is amazing in this day and age how many so called tradies dispense with any form of safety gear, then complain loudly when they get injured.

in new zealand we have to use jolt head nails, they call them product nails (made by Pryda i think)

a rough rule i use is one product nail per Kn required- so a 6 Kn strap would have 6 each side

ive never heard of shooting them on as you cant get jolt head gun nails, unless ive missed the point somewhere which is very likely

Lots of building inspectors knock back brackets nailed off with guns,and it is a dangerous practice.Ive been using a palm nail gun for 3 years now and had no troubles. Quicker than a hammer,you use the specific clout for each bracket and it will get into a tighter space than a hammer, and it only cost $150.

Hi Bazywood, thanks for comments. The pryda manual however states specifically that clouts should never be used. It also goes on to say that you can use a nail gun with 50x2.87 connector nails. I thought a building inspector would be happy as long as you followed manafacturer instructions? Have you had any issues with the clouts?

WJA

The pryda manual however states specifically that clouts should never be used.

Well there u go. Never had an troubles with clouts myself, but now will have to source the proper nails, especially because my next job will have to be inspected.

Must admit I cringe at the thought of using a gun nailer to attach joist hangers, even when using the right tool and nail for the job.

The building inspectors would have a feild day in SA, joist hangers truss bracing, trpple grips etc, etc are all fixed by by nail gun these days

Originally Posted by jatt

Well there u go. Never had an troubles with clouts myself, but now will have to source the proper nails, especially because my next job will have to be inspected............

The proper nails are of a higher tensile steel and if you look at them closely you'll see that the shank increases in diameter just under the head. This forces part of the framing anchor metal to mushroom out and into the timber, adding extra strength to the joint.

Mick

Apologies,should have been more specific ,you are correct you must use pryda nails in pryda products(they are double shanked). My point was that any nail including pryda nails can be used in the palm nailer.