Recommended fixing for kids swing

[Poe]

I'm about to build a timber frame swinging for my kids from 100mm poles using steel corner brackets like in this link.

https://www.google.com/url?sa=t&sou...wQFnoECAsQAQ&usg=AOvVaw1LWS99c0aZUOUqqfUHRU5S
Just wondering what you would recommend using as fixing for these brackets to the timber poles.

Thanks,

P.

 

[foxhole]

Decking screw.

 

[Poe]

Thanks foxhole,
I looked at decking type screws and bolts but they all seemed to small (in diameter).
I ended up using coach 8mm X 70mm bolts. Would have preferred something with a better coating but these should be fine.
Thanks again.