ESSVE concrete screws are designed for quick and easy fixing in concrete, brick, hollow core elements and hollow brick. Specially hardened screw that can be screwed directly into a drilled hole without a plug. Available in different variants and surface finishes. Concrete bolt with hexagonal head and flange designed for anchoring in concrete. A lightweight concrete screw is used for attachment in porous material. Sandwich element screw is intended for mounting of sandwich elements.