| Feature | Details |
|---|---|
| Material | Carbon Steel (Hardened), Stainless Steel (A2/A4) |
| Head Types |
|
| Diameter | 4.8 mm, 5 mm, 6.3 mm, 7.5 mm (or #10, #12, 1/4", 5/16") |
| Length | 25 mm to 200 mm (e.g., 32 mm, 50 mm, 75 mm, 100 mm) |
| Drive Types | Hex, Phillips, Torx (Star) |
| Surface Treatments | Zinc Plating, Blue Ruspert Coating, Stainless Steel, Dacromet |
| Pilot Hole Size | 4–6.5 mm (depending on screw diameter and material density) |
| Standards | ANSI B18.6.4, DIN 7976, ISO 1478, ETAG 001 (European Technical Approval for anchors) |
Blue Ruspert Concrete Screws are high-performance fasteners designed for direct installation into concrete, masonry, or stone without the need for anchors. They feature a hardened, threaded shank that provides excellent holding power and load-bearing capacity.
Coated with Blue Ruspert, a corrosion-resistant finish, these screws offer long-lasting durability even in outdoor or humid environments. They are ideal for heavy-duty construction, structural applications, and securing fixtures to concrete surfaces.

