Simpson 0.390 x 6-1/4" Strong-Drive SDCF TIMBER-CF Screw (Black E-Coat) SDWF FLOOR-TO-FLOOR Screw Drill Bit Size: 5/16 in

Drill Bit Size: 5/16 in

reduces heat buildup

120" diameter - delivers a strong

Selecting the correct version depends on the direction of your angled framing connection

Simpson 0.390 x 6-1/4" Strong-Drive SDCF TIMBER-CF Screw (Black E-Coat) SDWF FLOOR-TO-FLOOR Screw Drill Bit Size: 5/16 inThe Simpson Strong Drive SDCF Timber CF Screw (0. 390 x 6 1 4", Black E Coat) is a redesigned structural fastener engineered specifically for cross laminated timber (CLT), mass timber construction, and general interior applications. Built to deliver uncompromised strength in demanding structural assemblies, this screw combines precision engineering with a sleek black e coat finish that suits both performance and aesthetic requirements. Whether you are