Screw type for stud into breezeblock

[potatobuilder]

Hi I'm attaching 4x2 stud to a breezeblock wall, is a concrete screw suitable? https://www.screwfix.com/p/easydriv...g-concrete-screws-7-5mm-x-80mm-100-pack/8400h

Thanks

 

[johnny2007]

No

 

[jj4091]

No

From S/Fix site

Concrete Screws​

(47 products)
Concrete screws are a reliable choice for securing materials to concrete, brick, or masonry surfaces. Designed for heavy-duty applications, these screws are suitable for both commercial and residential projects where strong and stable fixings are required. Self-tapping concrete screws eliminate the need for pre-drilling in softer materials, streamlining the installation process and saving time on site. Available in various lengths and diameters, they provide flexibility to match different project requirements. The threads are engineered to cut into concrete effectively, ensuring a secure hold that supports structural integrity. Whether you're working on installing fixtures or anchoring frameworks, these screws offer a practical solution with their robust performance in demanding environments.

Several other sights also disagree with you but never having tried them into blocks I would not know for definite.

Do you come to your conclusion because blocks are not as dense as concrete or bricks

 

[foxhole]

Hi I'm attaching 4x2 stud to a breezeblock wall, is a concrete screw suitable? https://www.screwfix.com/p/easydriv...g-concrete-screws-7-5mm-x-80mm-100-pack/8400h

Thanks

Plug and screw .

 

[potatobuilder]

Thanks @foxhole like hammer in fixings? I have these: https://www.diy.com/departments/mas...lti-colour-10-x-80mm-50-/5063750882321_BQ.prd

This is my first time attaching stud to breezeblock - does the plug go into the wall and screw through the stud into plug? the screw would only be half way into the plug?

 

[johnny2007]

From S/Fix site

Concrete Screws​

(47 products)
Concrete screws are a reliable choice for securing materials to concrete, brick, or masonry surfaces. Designed for heavy-duty applications, these screws are suitable for both commercial and residential projects where strong and stable fixings are required. Self-tapping concrete screws eliminate the need for pre-drilling in softer materials, streamlining the installation process and saving time on site. Available in various lengths and diameters, they provide flexibility to match different project requirements. The threads are engineered to cut into concrete effectively, ensuring a secure hold that supports structural integrity. Whether you're working on installing fixtures or anchoring frameworks, these screws offer a practical solution with their robust performance in demanding environments.

Several other sights also disagree with you but never having tried them into blocks I would not know for definite.

Do you come to your conclusion because blocks are not as dense as concrete or bricks

Breeze blocks will simply not hold.
Concrete blocks will.
For breeze blocks quality plugs and screws work best.
Op has breeze blocks.

 

[foxhole]

Thanks @foxhole like hammer in fixings? I have these: https://www.diy.com/departments/mas...lti-colour-10-x-80mm-50-/5063750882321_BQ.prd

This is my first time attaching stud to breezeblock - does the plug go into the wall and screw through the stud into plug? the screw would only be half way into the plug?

Frame fixings prevent lateral movement but little pullout resistance . Screws and plugs required .What is the project?

 

[chirpychippy]

What i like to do is use 5x120mm screws with brown plugs and also bond the stud to the wall with CT1.

 

[potatobuilder]

@foxhole I want to add an ensuite bathroom to a room so adding a stud wall to separate it from the room.

I have a bottom and top plate for the stud work but the side which connects the stud to the wall is breezeblock. If frame fixings prevent lateral movement that sounds good for preventing the wall from falling over.
I'm confused how the fixing will be effective as the screw and plug are both 80mm long: the stud is 39mm thick so only 41mm of the screw will go into the plug which is fully in the breezeblock, or am I using it incorrectly? Thanks

 

[foxhole]

@foxhole I want to add an ensuite bathroom to a room so adding a stud wall to separate it from the room.

I have a bottom and top plate for the stud work but the side which connects the stud to the wall is breezeblock. If frame fixings prevent lateral movement that sounds good for preventing the wall from falling over.
I'm confused how the fixing will be effective as the screw and plug are both 80mm long: the stud is 39mm thick so only 41mm of the screw will go into the plug which is fully in the breezeblock, or am I using it incorrectly? Thanks

100-120mm fixing would have been better but should be ok as the rest of the timber involved will help brace it .Frame fixing are not separated you put the combined plug and screw thru the timber.