Need a Powder Actuated Fastener That Goes Thru Steel First and Then Wood. 2

[Ron247]

Does anyone know of a reliable powder actuated fastener that goes through the steel first and then nails into wood. We are trying to field attach upwards through a 3/16" thick angle leg into an upright 2x8 joist. It is easy to find the fasten through wood first and then into the steel but not the reverse. I have never had to do this before.

The attachment is to stabilize the joist and connect it to the primary steel support (a Channel). It will have about 50 lbs of lateral force on it max.

 

[rb1957]

"... the architect thinks it exists" … should've lead with that one ! (then we'd've known it was a red herring)

why not drill the steel and fasten into the wood ?? (as many have suggested)

another day in paradise, or is paradise one day closer ?

 

[Ron247]

I can have them drill and fasten it, just wanted to run this powder actuated question since the Arch thinks they exist. I was pretty sure this fastener method did not exist even though the Arch claimed it did. My original design shows a drilled hole and a lag screw. The Arch it the one who wanted to change it.

 

[BridgeSmith]

You could always 'play dumb' and ask the architect for the name of the supplier of the PAF he is referring to.

 

[Agent666]

Even if it was possible to screw through the steel with a self drilling screw, my thoughts are because you are cutting a thread in the steel vs it being a hole the screw just passes through, you are in the first situation just tightening the screw head against the steel and not clamping the wood at all which obviously should be the intent in any connection.

 

[Ron247]

The joist cannot go up at all. No tensions, just shear. I have an angle at the top also for a different reason that prevents it lifting up.

 

[Ron247]

HotRod10, I would not be "playing" dumb since I have all the necessary talents to work at that fundamental level. LOL. I have thrown the ball into his court and I assure you he will spent zero minutes trying to find this unicorn.

 

[BridgeSmith]

Hey, I didn't say it was an idea that would work...

 

[BUGGAR]

Put a steel plate to back up the wood, double-charge the PAF load, and blast away. Have the Architect stand in line to verify penetration.