Simpson 0.390 x 6 1/4" Strong-Drive SDHR COMBO-HEAD Screw Blue Zinc FPH Flat Pan-Head Screw 220 is a (Hinge Boring

220 is a (Hinge Boring Bit (57

Engineered with increased precision to meet the stricter tolerance guidelines demanded in today's custom manufacturing settings

anchor size for straightforward installation

Model Number: HU5

Simpson 0.390 x 6 1/4" Strong-Drive SDHR COMBO-HEAD Screw Blue Zinc FPH Flat Pan-Head Screw 220 is a (Hinge BoringSimpson 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