Thermalite blocks .

[quality]

Whats your most reliable method of fixing to these bloody things. I normally use a No. 10 screw with a red plug and nine times out of ten its OK but not today I am all ears

 

[ShaunCorbs]

Brown and a 10 screw or 12 if it's 4" long

 

[kozak1968]

Depends what your hanging, If its a boiler then use the bolts provided is usually fine. Brown plugs and screws works for everything aswell.

 

[king of pipes]

Brown plugs and 10 or 12 screws depens on what your hanging on it could use a chemical fixing . cheers kop

 

[quality]

Probably the red plug doesn't have enough diameter to get a good enough purchase as a brown. But my preferred rarely fails and I hate the crap that boiler manufactures supply with there boilers to use as fixings

 

[Stoney Ground]

Just bought some Fischer Duofix plugs, can be used in multiple structures. Seem pretty good.

 

[jtsplumbing]

never use anything but Brown plugs have done for more years than I can remember never had a problem

 

[Chalked]

Red plug drill bit, with brown plug

 

[Scott_D]

Two brown plugs in a 7mm hole and a 3-1/2 10 or 12 screw

 

[Harvest Fields]

I have had to go straight through before using long bolts into the external brickwork.