best heavy duty fixings into concrete?

[markharro]

I need to bolt down a post and also 2 rollers being running gear for a cantilevered gate. what are the best bolts/fixings to use? thanks

[Iceverge]

Chemical anchor and threaded rod. 

 

 

[Mr Punter]

25 minutes ago, Iceverge said:

Chemical anchor and threaded rod. 

+1

Ensure stud, washers and nuts are corrosion resistant (stainless or galv).  Clean the drilled holes thoroughly.

 

[Onoff]

I'd cast in J bolts for that as a "holding down unit". Hooked round mesh going down into the concrete.

 

Don't get me wrong I love chemical anchors.