TEK screw problem

[aw23846]

I am hanging some r-panel over an existing carport, and for the posts they used a rather thick gauge metal, problem is I'm using a cordless impact drill, and the heads of the screws are shearing off, I'm guessing because the metal is too thick for the screw to handle it. question is how do I go about finishing these screws? pre-drill every hole?, get another type of screw?, corded drill perhaps? please any guidance will be greatly appreciated!

[DEADEYE1]

What screws are you using? You should be using a tek 3 which is good up to .220 material if you are using a # 14. Also make sure you are not running the drill to fast they are made to go up to 2500 rpm's if you go faster than that you will break the tip. let the screw do the drilling you shouldn't have to pre dill the holes. if you need help just call me. I sell this fasteners for a living
thanks
Derek
713-539-25 nine nine

[Tmag]

Had the same issue with mine, backed the torque and speed down plus charged my batteries and it worked great.

[DEADEYE1]

screw

screw should have this type of tip on it.

[aw23846]

it does, but it screws for a while, then finally breaks.
I will look at the screws tonight when I get home

[young dunner]

I've always had good luck drilling pilot holes the using oil or grease on the screw when attaching to thicker metals

[hot_rod_eddie]

Why are you using an impact drill versus a standard drill? I use a standard and back the torque down.

[Aggiebush]

Get you some TEK 4's, they are for thicker gauge metal. They have a heavier drill tip and fine threads on them. Never had a problem with them going into heavier stuff.

[Mike D]

Why are you using an impact drill versus a standard drill? I use a standard and back the torque down.

This was going to be my suggestion.

[cvanbrunt]

I used an impact at one time to shoot some self drilling metal screws because I left my normal Makita drill at work and had the same problem. Brought my drill home the next day and they buried up like butter.

Switch to a drill and give it another shot.

[Ironman]

An impact is part of the problem. As stated, use 2500rpm's or less, and a regular drill.

[aw23846]

ok, i will try my regular drill when i get home, This is a silly question but what would you use a impact drill for? I really thought this was something it would be used for.

[bowhuntntxn]

ok, i will try my regular drill when i get home, This is a silly question but what would you use a impact drill for? I really thought this was something it would be used for.

Impacts are great for loosening or tightening things like lug nuts, or other nuts and bolts that would be at a high torque.

[Quackerbox]

If swapping drills wont get it use a punch. When we built the travel trailer barn it helped where the sheet metal was two layers.

Im betting the drill swap with the torque down will get it. Those impacts are awesome for lag bolts and long deck screws. Might be just mine but I think theyre slightly different than and actual impact thats designed for lugs, tight nuts etc.

[Ironman]

ok, i will try my regular drill when i get home, This is a silly question but what would you use a impact drill for? I really thought this was something it would be used for.

Impacts are excellent for installing wood screws, and as stated, nuts and bolts, but not for self drilling screws for steel.