Timber Sleeper Capping

[stumbling dubbo]

Im looking to cap both a besser block (filled) and a sandstone wall (built with mortar) with treated pine sleepers to provide more seating in a courtyard.
What would be the best way to fix the sleppers to the wall?

[Iain]

Countersunk head dynabolts or excalibur self tappers.

[tisme01]

countersunk loxins or dyna bolts but try to stay away from zinc as it will react with the copper in the sleepers (galvanized is the way to go)