16-7x75-125 Brown Ruspert 500H T17 Internal Hex Serrated Knurled Screw

Product Features
Serrated Flange Internal Hex Head: The flange distributes pressure to prevent wood crushing, while the bottom serrations bite into the timber for long‑term anti‑loosening. The internal hex recess handles high torque without slipping or stripping during driving.
T17 Cutting Self‑Drilling Point: Integrated chip‑clearing cutting flutes allow direct installation in high‑density hardwoods, eliminating pre‑drilling, effectively reducing splitting, and lowering driving resistance.
Knurled Coarse Thread Shank: The knurled shank reduces insertion resistance, while the deep coarse threads provide strong bite, pull‑out, and shear resistance, making longer sizes easier to drive.
Ruspert 500H Anti‑Corrosion Coating: A three‑layer composite anti‑corrosion system offering excellent salt spray resistance, withstanding moisture, coastal salt spray, and preservative chemicals. Environmentally friendly, hydrogen‑embrittlement‑free, with a brown aesthetic that prevents rust stains from contaminating the wood.
Multiple Sizes with High Strength: The 16# thick shank is heat‑treated to resist bending and fracture; available in 75, 90, 100, and 125 mm lengths to suit various timber thicknesses.