Simpson 7/16 in. x 12-1/4 in. SDS-Plus Carbide 2-Cutter Head Drill Bit MDPL04312 CB3BLGHL Cement Board Screw (Collated) Do these clips require predrilling

Do these clips require predrilling during installation

or coastal wood framing - while type 304 is suitable for less demanding corrosive conditions

Designed to support a 2 in

Simpson S10200DBB Bugle-Head Wood Screw

Simpson 7/16 in. x 12-1/4 in. SDS-Plus Carbide 2-Cutter Head Drill Bit MDPL04312 CB3BLGHL Cement Board Screw (Collated) Do these clips require predrillingKey Features Uniformly brazed carbide inserts result in longer bit life Chromium nickel molybdenum steel alloy body ensures hammering quality and extended service life Heat treatment procedures and shot peened finish increase surface hardness, drilling speed, reduces drill bit wear and improves resistance to bending forces Drill bits conform to ANSI Standard B212. 15 Chisel shaped drill bit head penetrates the material and directs concrete dust into