Simpson 0.390 x 4" Strong-Drive SDHR COMBO-HEAD Screw Blue Zinc Specialty Fasteners With a full 6' working

With a full 6' working width and the ability to bend 13-gauge mild steel across its entire span

making it a trusted choice for structural connections in residential and commercial construction

Head tilts left or right for enhanced positioning versatility

What size beam is the ECCQ5-6SDS2

Simpson 0.390 x 4" Strong-Drive SDHR COMBO-HEAD Screw Blue Zinc Specialty Fasteners With a full 6' workingThe Simpson Strong Drive SDHR Combo Head Screw is a heavy duty structural fastener engineered for cross laminated timber construction, mass timber assemblies, and general interior applications. Built with a partially threaded shank and a robust 0. 390 in. outer diameter, this blue zinc coated screw is purpose built to draw structural members tightly together while delivering exceptional connection strength in engineered wood and modular construction