Simpson 0.315 x 13-3/4" Strong-Drive SDCF TIMBER-CF Screw Self-Drilling Wafer-Head Screw with Wings Dual drive wheels provide balanced

Dual drive wheels provide balanced

End-of-wall installations utilizing the turned-in A2 acute flange

Its economical design requires only a small number of nails for maximum download capacity

which means the nails are far less likely to back out as the deck boards expand and contract through seasonal moisture and temperature changes

Simpson 0.315 x 13-3/4" Strong-Drive SDCF TIMBER-CF Screw Self-Drilling Wafer-Head Screw with Wings Dual drive wheels provide balancedThe Simpson Strong Drive SDCF Timber CF Screw (0. 315 x 13 3 4 in.) is a heavy duty structural fastener engineered specifically for cross laminated timber (CLT) construction, mass timber assemblies, and general interior structural applications. With a 0. 315 in. diameter and 13 3 4 in. length, this fully threaded, yellow zinc coated screw delivers exceptional withdrawal resistance and load bearing performance where structural integrity cannot be