Simpson 0.470 x 4" Strong-Drive SDHR COMBO-HEAD Screw Blue Zinc Strong-Bolt 2 Wedge Anchor Stainless Steel 30 x Simpson MSSC 6-1/4

30 x Simpson MSSC 6-1/4 in

Threading Dial Indicator ensures accurate thread pickup when cutting multi-pass threads

Maintenance-Free Gear Train: Sealed oil bath gear train eliminates the need for routine maintenance

Header and sill connections to jamb studs

Meehanite castings provide maximum vibration damping and structural integrity

Simpson 0.470 x 4" Strong-Drive SDHR COMBO-HEAD Screw Blue Zinc Strong-Bolt 2 Wedge Anchor Stainless Steel 30 x Simpson MSSC 6-1/4Model No. SDHR31400 R25 Finish. Blue Zinc Coated Length. 4 Head Diameter (in.) 0. 669 Shank Diameter (in.) 0. 315 Drive Type. T40 6 Lobe or Hex Head Head Type. Combination Thread Length (in.) 2 1 8 Point Type. Type 17 Point The Strong Drive SDHR Combo Head screw is a structural fastener designed for cross laminated timber construction, mass timber construction and general interior applications. These partially threaded, sturdy structural fasteners are