Wall plug diameter for M10 coach screws.

[Possom]

If inserting 100 mm M10 coach screws (pictured below) through a timber support and into a brick wall, I'll require some wall plugs to anchor these in the brick.

What diameter of wall plug would I need? Is it a 10 mm diameter wall plug such as the one linked-to below; or do I require a wall plug with a diameter greater than 10mm? Thanks.

https://www.screwfix.com/p/rawlplug...ck/28042#product_additional_details_container

 

[Burnerman]

Give 12 mm plugs a try, and drill a 10.5 mm clearance hole in the timber. You can consider a counterbored hole in the timber if the coach screw is on the short side.
John

 

[SammyInnit]

If you're fixing timber to the wall you might not want to use timber screws but instead brick/concrete/block fixings as that's where the fixing will be secured. There's a variety of different fixings to consider.

Coach screws are more for joining something to timber or timber to timber.

 

[Hot&Cold]

Concrete bolts or concrete screws directly into the masonry,works very well

Hardly ever use wall plugs these days,except for yellow or red ones

 

[rsgaz]

Fischer S14 plugs are what I use for M10 coach screws. Extremely strong.