CONC SCREW SORMAT S-CSA+ HEX 14X75 SW21 ML COATED 20PCS

High-performance Sormat S-CSA+ HEX ML concrete screw with hex flange, manufactured in Finland. The carbon steel screw is cold-formed to provide a reliable fastener strong enough to penetrate even hard materials. The concrete screw features a hardened special thread that forms threads directly into the base material. The ML (Multi Layer) surface treatment is a corrosion-resistant three-layer coating (>1000 hours resistance in salt spray test according to EN ISO 9227), enabling significantly broader application areas than standard electro-galvanized screws. The screw is fully removable. Screw tensile strength: 800 MPa. Recommended for dry indoor environments and outdoor applications with consideration of usage limitations. The product has European technical approval ETA-20/0446 for concrete. The product is also CE marked. Concrete screws also have general DIBt type approval Z-21.8-2136 for temporary fastenings into concrete, enabling reuse for temporary applications such as formwork installations. Measurement determines whether the screw is reusable, performed using the inspection gauge CG S-CSA+ 14. Fire-rated for concrete installations up to R120. The concrete screw is designed for through-installation. Installation steps: 1. Drill a hole according to product specifications. 2. Clean the hole thoroughly. 3. Insert the screw through the material to be fastened into the hole until the anchor flange contacts the material to be fastened. We recommend using a suitable size impact screwdriver for installing concrete screws. No predefined torque value. Usage allows for small minimum edge and spacing distances between anchors. Packaging size: 20 pcs. The screw has a partial thread with thread length of 65 mm. Spanner size AV21, flange diameter 28 mm, flange height 12 mm. Suitable substrates: concrete, solid brick, and solid calcium silicate brick. Suitable for fastening into both cracked and uncracked concrete. Drill hole diameter: 14 mm. Drill hole depth: 75 mm. Thickness of material to be fastened: 10 mm. This product description is an automated translation of the original Finnish description.