Hi!
What is best to use if you are going to screw up a door frame in concrete?
70s Lb-house split-level villa, this is on the ground floor.
Today there are frames from when the house was built, these are nailed.
 
Milkshaken
One thing that usually works well is regular Brown plastic plugs, i.e., after you have wedged up the frame and fixed it, you must pre-drill, then insert the plug, then the frame screws.... Then just adjust in the usual way..
 
ok will test it !was considering it but thought if there was any special solution for this otherwise
 
Milkshaken
I know those who fasten with metal strapping and keep on, but I think it's overkill, regular plastic plugs... Can't remember if it's the brown or the blue ones that fit exactly with the frame screw, but I seem to recall it's the brown ones...
 
I have used Fischer plug, can't remember the designation but it's clear when you look at the packaging, it has worked very well.
 
I suggest as usual Essves indu-prog sleeves, in this case combined with the induprog concrete screw. You avoid both wedges and plugs.
 
Milkshaken
Do you have any link to these Mathias S ?
 
Milkshaken
Oh, you mean those,,,, yeah, they are good, but easier to fail when screwing them in, the threads in the frame wood can easily break...

And you still have to drill into the concrete and remove the frame... then insert the plug to then reinstall it...
 
Well, now it's a double fault! :wow:

1. The Karmhylsorna are installed VERY easily and completely without thread failure in a 14mm hole using a power drill and a suitable hex pin. Doing it by hand is tiresome, time-consuming, and as you say, there's a risk of splitting the wood.

2. If you look among the accessories, you'll see there's a concrete screw with a head for the induproghylsorna. Install the hylsorna, place the frame, tighten with the hylsorna and adjust vertically/horizontally, drill, screw without removing the frame. No plug needed.

Smooth as heck. Other manufacturers have similar systems, I believe.
 
Disclaimer: The sleeves come in different lengths. Buy the right length so you don't have to manually trim to fit the plastic tabs on the inside of the frame...
 
Milkshaken
Ahhh, so it's the same type of screws as in a Giha floor then.... just drill and screw..... Ok... yes then I'm impressed..... these sleeves you link to I have always tightened with a machine before, (It's supposed to be quick) and half of them ruin the wood, (so the threads are very many on a small area yes)....
But what the heck, if you have such concrete screws with the right head, then it's obviously a hot alternative...
 
Okay, I don't know what to suggest when it comes to pulling the sleeves. Press hard and start slowly, I think. I've never thought much about how I do it since it has always worked smoothly.
 
Milkshaken
Well, you have a little clearance with "Dödgång", then threads.... That's where it goes wrong for me.
 
Do you drive with a socket or Allen?
 
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