Simpson 0.390 x 12 1/2" Strong-Drive SDCP TIMBER-CP Screw T40, Yellow Zinc 3-Flat Shank This combination provides a medium

This combination provides a medium level of corrosion resistance

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Superior Corrosion Resistance: Stainless steel material provides extra protection for exterior applications and installations with treated wood

Simpson 0.390 x 12 1/2" Strong-Drive SDCP TIMBER-CP Screw T40, Yellow Zinc 3-Flat Shank This combination provides a mediumThe Simpson Strong Drive SDCP Timber CP Screw is a heavy duty structural fastener engineered for cross laminated timber construction, mass timber assemblies, and general interior framing applications. Featuring a 0. 390 in. head profile, 12 1 2 in. overall length, and a T40 6 Lobe drive, this partially threaded screw is built to pull structural members together with exceptional holding power making it a trusted choice for demanding timber to timber