Simpson SDWF Floor-to-Floor Screw 0.270 x 20 in 5/16 Hex E-coat w/Take-Up Washer Kit 25-Pk Heli-Tie Helical Wall Tie step drill bit

step drill bit

and the "U" design allows for flexibility of placement on the header

End bearing conditions where a beam bears on the top of a wood post

Securing 4 x 8 wood columns to concrete foundations and slabs

Type 316 stainless steel is the optimal choice for applications in corrosive or extreme environments

Simpson SDWF Floor-to-Floor Screw 0.270 x 20 in 5/16 Hex E-coat w/Take-Up Washer Kit 25-Pk Heli-Tie Helical Wall Tie step drill bitThe Simpson Strong Drive SDWF Floor to Floor Screw (SDWF2720 TUW) is an engineered fastener solution designed to simplify wind uplift restraint connections while delivering superior long term structural performance. At 0. 270 in. x 20 in. with a 5 16 in. hex drive and variable thread design, this screw attaches upper and lower walls together from the top, spanning the entire floor system to create a reliable, easy to install connection within the