16-10x90 Hex Head With Internal Hexagon Groove Knurled And Scored Concrete Screw

Product Features
Dual‑Drive Flange Head, Anti‑Loosening and Pressure‑Resistant: The external hex flange features knurled anti‑slip serrations, eliminating the need for washers and preventing panel deformation; the internal hexagon recess withstands high torque, resisting stripping during installation, and is compatible with both wrenches and impact drivers.
Knurled Coarse Thread Shank, Strong Anchorage: The knurled shank creates mechanical locking to enhance pull‑out and shear resistance; the wide‑spaced coarse thread ensures smooth chip evacuation, preventing binding when driving into walls, and maintains secure load‑bearing performance over long‑term use.
Scored Cutting Point, Efficient Installation: The cutting flutes at the point effectively break up concrete dust, eliminating the need for pre‑drilling or expansion anchors, completing anchoring in one step, with reduced risk of breakage during extended driving.
Ruspert Silver Coating, Long‑Lasting Corrosion Resistance: A multi‑layer composite anti‑corrosion system offering salt spray performance far superior to ordinary zinc plating, resistant to rain, coastal salt, and alkali corrosion, wear‑resistant and non‑peeling, with a matte silver finish that complements metal profiles.
Quenched High‑Carbon Steel, Load‑Bearing and Durable: Overall heat treatment provides balanced hardness and toughness, capable of directly cutting into hard concrete, meeting the anchoring requirements of heavy‑duty brackets and framing.