5/8" x 18" Simpson SDS-Plus Quad Head Concrete Drill Bit, Carbide Tip, Pkg 1 Strong-Tie SDW Truss-Ply Screws Its specialized thread design allows

Its specialized thread design allows the screw to tap directly into concrete or block with minimal effort with no expansion anchors or inserts needed

Flexible design: #5 Roofjack size fits pipe sizes from 4" - 8-1/4"

Expect high quality that outlasts the rest

May be ordered HDG - please contact us to order

Corrosion resistance - built for outdoor exposure

5/8" x 18" Simpson SDS-Plus Quad Head Concrete Drill Bit, Carbide Tip, Pkg 1 Strong-Tie SDW Truss-Ply Screws Its specialized thread design allowsStrong Tie SDS Plus masonry drill bits feature a durable carbide tip and are designed for use in concrete, brick and block applications.