Simpson 0.390 x 4" Strong-Drive SDHR COMBO-HEAD Screw Blue Zinc PACK:25 Pk How many dies are included

How many dies are included and what radii are available

The flat black powder-coated finish on the OCB88 produces a much more durable and better-looking finish than standard paint

Durable Powder Coat Finish: Resists chipping

This screw uses a T30 6-lobe drive

Simpson 0.390 x 4" Strong-Drive SDHR COMBO-HEAD Screw Blue Zinc PACK:25 Pk How many dies are includedThe 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