✅ Slotted Hex Washer Head
Slotted hex‑washer head provides firm wrench grip for high‑torque driving. Integrated washer distributes pressure evenly to prevent surface damage.
✅ Hi‑Lo Special Thread for Masonry
Unique Hi‑Lo double‑thread design cuts smoothly into concrete, brick and block. Delivers strong holding performance without needing plastic wall anchors.
✅ Rugged Blue Protective Coating
Anti‑corrosion blue finish improves rust resistance, suitable for both indoor and outdoor masonry projects for long‑term service.
✅ Multiple Practical Sizes Available
Available sizes: #1/4×2‑3/4", #3/16×1‑1/4", #3/16×2‑3/4". Cover different renovation and mounting requirements for concrete substrates.
✅ Reusable Transparent Storage Box
Sturdy plastic storage case keeps screws well‑organized, convenient for transport, storage and on‑site construction use.
