The time has come to refurbish our deck and of all things I'm struggling to find acceptable bolts for attaching bearers to the new galv steel stumps.
Original construction was treated pine bearers and stumps, which someone decided to fasten together using generic hot dip galvanised bolts. Have attached a pic of one of the more intact samples have removed so far. The new stumps are galvanised steel, and I can't for the life of me find appropriate bolts to join the bearers onto them. Previously I've used tech-shield bolts (last spare from previous project also attached) for joining galv and treated pine, as something compatible with both treated timber and steel, but while bunnings still sells treated pine screws, I can't see any equivalent bolts anymore. Galv bolts compatible with posts and incompatible with treated pine, OR stainless bolts incompatible with galv posts but compatible with the pine. The only fasteners stocked that are compatible with both are batten screws.
I assume I have to be missing something obvious, since bunnings does sell every other part of the decking system. Would appreciate someone pointing me in the right direction.
