Simpson 0.390 x 6 1/4" Strong-Drive SDHR COMBO-HEAD Screw Blue Zinc Sandpaper The WP26 is designed for

The WP26 is designed for use with 2x6 dimensional lumber joists

No-predrill installation saves time and reduces wood damage - the Type-17 point and serrated thread design allow the screw to drive directly into wood and engineered lumber

Featuring a self-drilling design with a #3 drill point

511 may be ordered with a hot-dip galvanized finish for applications requiring enhanced corrosion protection

Member Size - Post: Nominal 6x

Simpson 0.390 x 6 1/4" Strong-Drive SDHR COMBO-HEAD Screw Blue Zinc Sandpaper The WP26 is designed forSimpson Strong Drive SDHR Combo Head Screw by Simpson is a heavy duty structural fastener engineered for cross laminated timber construction, mass timber construction, and general interior applications. At 6 1 4 in. long with a 0. 390 in. outer diameter, this partially threaded screw draws structural members tightly together while delivering excellent connection strength in demanding timber framing and wood to wood assemblies. The blue zinc interior