0.390" x 4" Strong-Drive SDCP Timber-CP Screw - Yellow Zinc, Pkg 250 Concrete Repair & Crack Injection 6-lobe star drive - provides

6-lobe star drive - provides secure bit fit

and a 6-lobe recess for controlled driving torque

making them ideal for securing joists

Bolthold anchors must be installed with the specified EPX2 or EPX3 special grout

0.390" x 4" Strong-Drive SDCP Timber-CP Screw - Yellow Zinc, Pkg 250 Concrete Repair & Crack Injection 6-lobe star drive - providesThe Simpson Strong Tie Strong Drive SDCP Timber CP Screw is built to handle tough wood to wood connections in interior projects. Designed for engineered wood and mass timber construction, these screws offer serious strength while still being easy to install. Each screw features a countersunk head that sits flush with the surface, giving your project a clean, professional look. The fully threaded shank provides excellent holding power, while the sharp