Stainless Steel Wall Bracket Screw or Hanger Bolt
Wall Bracket screw/Hanger Bolt for Stainless Steel Handrail Wall Brackets.
The length L of the screw is 4 5/16".
It's threaded M8 to fasten to the wall bracket and a lag screw thread from the other side to fasten to wood or metal stud.
The screw is ideal for mounting the wall bracket into the stud.
In case you need to anchor the bracket to concrete or brick then you need to buy as well lag shield anchors like the following Lag Shield Anchors
Instructions: Spot drill the wall with a 3/16" drill bit before screwing in the handrail