Simpson Quik Drive QDPROLDHG2 Underlayment Backerboard Attachment for Cement Board and Fiber-Cement Stainless Steel Screws Match the sheathing clip size

Match the sheathing clip size to the panel thickness

The Simpson HUC46 HUC Galvanized Face-Mount Concealed-Flange Joist Hanger for 4x6 is a heavy-duty structural connector engineered by Simpson Strong-Tie for applications requiring additional strength and safety factors

What is the concealed-flange design and why does it matter

The CMT 552-008 is a 5/16" (8mm) Diamond Dry Hole Saw For Drill (Hexagonal Shank)

Simpson Quik Drive QDPROLDHG2 Underlayment Backerboard Attachment for Cement Board and Fiber-Cement Stainless Steel Screws Match the sheathing clip sizeSimpson QDPROLDHG2 Quik Drive PROLDHG2 Underlayment Backerboard Attachment by Simpson Strong Tie is a professional grade auto feed screw driving attachment engineered for fastening cement board and fiber cement board underlayment backerboard to wood or steel. Backed by extensive research into fastener performance and real world installation workflows, this attachment delivers the efficiency and precision that demanding applications require, turning