R roli said:
There can be more differences between screws. For example, material, hardness/softness, hardened/non-hardened, surface treatment, etc. With this, I want to say that it's difficult to compare screws solely by, for example, diameter. Many of these details are also hard to find for each screw, not everything is disclosed on a box.
You are correct, but in this particular case, both screws are from VSB in hardened steel AISI C-1022. What differentiates them is the surface coating, Zincotech Au or Zincotech Ag, both in corrosion class C4.
 
There, a lot of information about both quality, surface treatment, and corrosivity class. But VSB has their stuff/products in order.
 
Planning to attach my ceiling beams to the supporting beam for the patio roof with these angle brackets. Will they hold firmly with anchor screws, or is it better to choose a longer screw through the angle bracket downwards into the support beam (it is 180 mm high, so there is room for a long screw)?

The ceiling beams are 42 mm thick, so a 40 mm anchor screw will probably be optimal then.

What I want to be sure of is that the wind doesn't catch the roof during a storm and lift it.
 
  • Metal bracket with multiple holes, dimensions labeled as 83 mm, 62 mm, and 40 mm, used for fastening beams in wooden structures.
Better with several screws than a few long ones

Protte
 
prototypen prototypen said:
Better with several screws than a few long ones

Protte
I was thinking of filling it up. That is, 10 screws per angle iron.

Does anyone know how many kg of upward pull the roof beam can withstand with 10 anchor screws in angles on both sides of the beam?
 
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S.lips
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Otherwise, you have to use gaffelankare, then you can get in more screws.
 
V Villa1949 said:
I was planning to fully load it. That is, 10 screws per angle iron.

Does anyone know how many kg of upward tensile force the roof beam can withstand with 10 anchor screws in angles on both sides of the beam?
It will hold more than enough. Many are satisfied with just a few nails at an angle.
Offset the angle on the opposite side to avoid screw collision or alternatively reduce the number of screws in the roof beam so they are staggered.
 
Ö öringen said:
That will hold more than enough. Many are satisfied with a few spikes in the slope.
Shift the angle on the opposite side to avoid screw collision or alternatively reduce the number of screws in the roof beam so that they offset.
Do you think they'll collide if I place them opposite each other? I'm thinking they'll be different on the different sides of the beam (3 on one side and 2 from the other side opposite) please check the picture to see how the angle iron holes are positioned.
 
V Villa1949 said:
Do you think they will clash if I place them opposite each other? I think they will be different on the different sides of the beam (3 sides on one side and 2 from the other opposite) feel free to look at the picture to see how the angle iron holes are positioned.
No, they probably won't with that variation of hole pattern shown in the picture.
 
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