Simpson 0.390 x 7-7/8" Strong-Drive SDCF TIMBER-CF Screw (Black E-Coat) PPHD SHEATHING-TO-CFS Screw What column size is the

What column size is the CB612 designed to fit

What size driver bit is needed to install this screw

meaning you get strong mechanical keying without the complexity of traditional sleeve or wedge expansion anchors - ideal for fast-paced installation environments

preventing head breakage and maintaining drilling performance throughout the bit's service life

) in the joist

Simpson 0.390 x 7-7/8" Strong-Drive SDCF TIMBER-CF Screw (Black E-Coat) PPHD SHEATHING-TO-CFS Screw What column size is theThe Simpson Strong Drive SDCF Timber CF Screw in 0. 390 x 7 7 8" is a redesigned structural fastener from Simpson engineered specifically for cross laminated timber (CLT), mass timber construction, and general interior applications. Built for heavy timber and engineered wood assemblies, this black e coat screw delivers flush, clean installation with the torque reducing performance that demanding structural work requires. Whether you're fastening