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Post by ccove on Feb 26, 2014 9:54:54 GMT -7
My wife informed me that there had been a few robberies in the neighborhood, all comprising the thieves kicking in the front door. I figured that I had better check the doors just to be sure. I knew the back door was secure but I could not remember about the front. Long story short I replaced the the 1 1/2 inch screws with 3 inch screws. The door and frame are steel so there was no need to reinforce the dead bolt and regular catch. I guess you could still kick it open but at least not on the first try. Hopefully I will never have to find out.
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Post by thywar on Feb 26, 2014 10:26:08 GMT -7
Or at least have enough time to draw a bead on the door to welcome them in. Put a sign up that says 'this steel door is for your protection not mine'. Lol
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Post by ccove on Feb 26, 2014 10:59:32 GMT -7
I worry more when I am not there. The house is fully alarmed and the police have a fast respond time by me. That is not to say that on a crash and grab they could not hit real fast and take off.
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Post by Cwi555 on Feb 27, 2014 6:35:10 GMT -7
My wife informed me that there had been a few robberies in the neighborhood, all comprising the thieves kicking in the front door. I figured that I had better check the doors just to be sure. I knew the back door was secure but I could not remember about the front. Long story short I replaced the the 1 1/2 inch screws with 3 inch screws. The door and frame are steel so there was no need to reinforce the dead bolt and regular catch. I guess you could still kick it open but at least not on the first try. Hopefully I will never have to find out. Longer screws don't necessarily do you any good. The shear moment will be on the screw head. 1.5" vs 3" in particular won't help in regards to that as 1.5" already has enough length to deliver that shear force to the screw head instead of yanking it out of the wall like it would 1" or less versions. On the other hand, a material change can make a difference. 431 material stainless matweb.com/search/DataSheet.aspx?MatGUID=d8e1bf3afc3242ef9faf136ccf91e110Standard garden variety carbon steel (typical for carbon screws). matweb.com/search/DataSheet.aspx?MatGUID=ac42d63f317b406c99c3f41d3da1f893What you want to pay attention to is the ultimate yield strength. For this application, that's the only number that matters. 431 is used in high end screws and fasteners. 1021 is the garden variety. The difference is illustrated below. 70,500 psi vs 125,000 psi ultimate yield. The former is stronger than the door and frame steel, but not by much. The latter is significantly stronger meaning the door and frame steel will fail before the 431 does.
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Post by marc on Feb 27, 2014 7:38:59 GMT -7
This is not related to the breaking strength of screws and steel doors and frames are a whole different story, but:
The standard residential wooden doors that I've seen kicked in, ripped the screws out of the door frame - and/or the whole frame came out with the door. The reason I use longer screws is to reach well into the stud framing that the door frame is hung in. By the time you clear the door frame and the shims/gap, you have lost 1.5" to 2" or more, before even getting to the underlying studs. Longer screws hold both the door and the frame in place more securely.
When I use double sided dead bolts (key needed inside and out) on certain doors, I replace one screw in each hinge with a steel pin. Even if the bad guys pull the hinge pins from inside - the door still won't open to let them haul big stuff out.
Marc
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Post by Cwi555 on Feb 27, 2014 10:27:31 GMT -7
This is not related to the breaking strength of screws and steel doors and frames are a whole different story, but: The standard residential wooden doors that I've seen kicked in, ripped the screws out of the door frame - and/or the whole frame came out with the door. The reason I use longer screws is to reach well into the stud framing that the door frame is hung in. By the time you clear the door frame and the shims/gap, you have lost 1.5" to 2" or more, before even getting to the underlying studs. Longer screws hold both the door and the frame in place more securely. When I use double sided dead bolts (key needed inside and out) on certain doors, I replace on screw in each hinge with a steel pin. Even if the bad guys pull the hinge pins from inside - the door still won't open to let them haul big stuff out. Marc In that application, you would be correct. The wood would give out before the screw would.
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Post by thywar on Feb 27, 2014 10:36:20 GMT -7
And from experience bring a crow bar cause it's a lot harder to kick in a door than what most people think. It's not like on TV. And I have a size 12 boot
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Post by ccove on Feb 27, 2014 11:53:10 GMT -7
Thanks for the input.
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Post by Cwi555 on Feb 27, 2014 18:23:38 GMT -7
And from experience bring a crow bar cause it's a lot harder to kick in a door than what most people think. It's not like on TV. And I have a size 12 boot I agree it's harder, but sledgehammers are relatively cheap at the local hardware supply store. They use about any blunt force item they can get.
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astral
Learning the ropes
Posts: 15
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Post by astral on May 6, 2014 18:01:02 GMT -7
This is not related to the breaking strength of screws and steel doors and frames are a whole different story, but: The standard residential wooden doors that I've seen kicked in, ripped the screws out of the door frame - and/or the whole frame came out with the door. The reason I use longer screws is to reach well into the stud framing that the door frame is hung in. By the time you clear the door frame and the shims/gap, you have lost 1.5" to 2" or more, before even getting to the underlying studs. Longer screws hold both the door and the frame in place more securely. When I use double sided dead bolts (key needed inside and out) on certain doors, I replace one screw in each hinge with a steel pin. Even if the bad guys pull the hinge pins from inside - the door still won't open to let them haul big stuff out. Marc At my house, although it's nothing fancy, the outside looks like its run down. There have been plenty of break ins near me, but they haven't hit my house. Could be my ugly siding looking like its from the 20's. lol. I never thought of using a steel pin......
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Post by ccove on May 7, 2014 7:45:46 GMT -7
This is not related to the breaking strength of screws and steel doors and frames are a whole different story, but: The standard residential wooden doors that I've seen kicked in, ripped the screws out of the door frame - and/or the whole frame came out with the door. The reason I use longer screws is to reach well into the stud framing that the door frame is hung in. By the time you clear the door frame and the shims/gap, you have lost 1.5" to 2" or more, before even getting to the underlying studs. Longer screws hold both the door and the frame in place more securely. When I use double sided dead bolts (key needed inside and out) on certain doors, I replace on screw in each hinge with a steel pin. Even if the bad guys pull the hinge pins from inside - the door still won't open to let them haul big stuff out. Marc Hey Marc I am a little dense today. Do you pull the screw and then insert the pin with the end sticking out of the frame so that it will insert into the door when it is closed. I'm guessing that you have to watch the length of the pin to prevent it from sticking when closing the door. In that application, you would be correct. The wood would give out before the screw would.
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Post by carolina168181 on May 7, 2014 18:13:06 GMT -7
Consider looking at your property like a thief.Any areas of the house that provides cover to Jimmy a door or window. Any tools left out that could be used to break into your home Any windows without blinds or curtains that would give a thief a good look as to what you have that could be stolen.TV,jewelry,etc. If you have a two story house,are the second story windows kept locked. If you have bought an TV,computer,etc ,cut up the boxes they came in and put in trash bags. Don't post on Facebook about any major purchases,or vacations you plan to be away. Keep bushes trimmed and yard maintained. Install security lighting Keep extra house keys with you and not hidden under a rock in the yard Be "gray", don't wear a lot of jewelry,designer clothes,gucci purses,etc.Dont give others the impression you have money.
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