Underlayment & Subfloor Screws

Simpson Strong-Tie DWFSDQ114PS Quik Drive (#6 x 1-1/4") Collated Drywall-to-CFS Screw, Quik Guard Coating (2500 Pack)

Simpson Strong-Tie DWF1PS Quik Drive (#6 x 1") Drywall-to-CFS Screw, Gray Phosphate (2500 Pack)

Simpson Strong-Tie DWF158PS Quik Drive (#6 x 1-5/8") Collated Drywall-to-CFS Screw #2 Phillips Bugle Head (2500 Pack)

Simpson Strong-Tie DWF114PS Quik Drive (#6 x 1-1/4") Collated Drywall-to-CFS Screw #2 Phillips Bugle Head (2500 Pack)

Simpson DWCG158S Quik Drive DWC Drywall Screw for Wood-to-Wood Fastening (2500 Pack)

Simpson DWC212PS Quik Drive DWC Drywall Screw Gray Phosphate (1500 Pack)

Simpson Strong-Tie DWC1PS (#6 x 1") Drywall Screw Bugle-Head (2500 Pack)

Simpson Strong-Tie DWC158PS (#6 x 1-5/8 in.) DWC Drywall Screw #2 Phillips Bugle-Head Gray Phosphate (2500 Pack)

Simpson Strong-Tie DWC114PS (#6 x 1-1/4") Collated Drywall Screw #2 Phillips Bugle-Head Gray Phosphate (2500 Pack)

Simpson Strong-Tie CBSDQ214-2K (#10 x 2-1/4") Sheathing-to-CFS Screw Ribbed Flat Head with Quik Guard Coating (2000 Pack)

Simpson Strong-Tie CBSDQ158-3K (#8 x 1-5/8") Sheathing-to-CFS Screw Ribbed Flat Head with Quik Guard Coating (3000 Pack)

Simpson Strong-Tie CBSDQ138S (#10 x 1-3/8") Sheathing-to-CFS Screw Ribbed Flat Head (1500 Pack)

Simpson Strong-Tie CBSDQ138-5K (#10 x 1-3/8") Sheathing-to-CFS Screw Ribbed Flat Head #2 Square Undersized with Quik Guard Coating (5000 Pack)

Simpson Strong-Tie CBSDQ106S (#8 x 1-1/16") Sheathing-to-CFS Screw Ribbed Flat Head (2500 Pack)

Simpson Strong-Tie CBSDQ106-5K (#8 x 1-1/16") Sheathing-to-CFS Screw Ribbed Flat Head with Quik Guard Coating (5000 Pack)

Simpson Strong-Tie CB3BLGHL158S (#9 x 1-5/8") Fiber-Cement Board Screw Collated (1500 Pack)

Simpson Strong-Tie CB3BLG158S (#10 x 1-5/8") Fiber-Cement Board Screw Ribbed Wafer Head (1500 Pack)

Simpson Strong-Tie CB3BLG114S (#10 x 1-1/4") Fiber-Cement Board Screw Collated (1500 Pack)