0.669 x 4 Strong-Drive® SDHR COMBO-HEAD Screw Blue Zinc Type 17 Point - Box (100)
0.669 x 4 Strong-Drive® SDHR COMBO-HEAD Screw Blue Zinc Type 17 Point - Box (100)
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0.669 x 4 Strong-Drive® SDHR COMBO-HEAD Screw Blue Zinc Type 17 Point - Box (100) is a structural fastener designed for cross-laminated timber construction, mass timber construction and general interior applications. These partially-threaded, sturdy 0.390 in.- and 0.470 in.-diameter structural fasteners are designed to pull structural members together while providing excellent connection strength. The “combination” head allows for driving using either a hex driver bit or T40 6-lobe driver bit. The SDHR Combo-Head has an interior-grade, blue zinc coating, a robust knurled shank and Type-17 point for fast starts and low-torque driving.
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