Walraven Female Thread Concrete Screw

This concrete screw is designed to provide a secure, high-capacity anchorage solution for demanding installations in concrete and hollow-core slab structures. It features an internal M8/M10 thread allowing attachment of threaded rods or accessories, combined with a zinc-plated steel unibody construction which ensures durability and reliability. The tip and thread geometry minimise concrete spalling during installation. Suitable for cracked and non-cracked concrete as well as precast pre-stressed hollow-core slabs. Fire-rated from R30 up to R120, it also meets the requirements of sprinkler-system installations under VdS CEA 4001:2024-01. With multiple anchoring depths and reduced edge/spacing requirements, it offers flexibility and efficient use of material in structural fastening applications.

• High load capacity: Enables heavier structural or mechanical loads to be secured safely.
• Multiple anchoring depths: Offers greater flexibility in installation to adapt to various substrate or load conditions.
• Reduced edge and anchor spacing: Allows closer placement to edges and adjacent anchors, improving layout efficiency.
• Special tip and thread geometry: Minimises risk of spalling, preserving the integrity of the concrete and anchor.
• Fire-rated R30-R120: Suitable for installations where fire performance is essential, supporting compliance with safety regulations.
• Approved for sprinkler-system concrete installations: Meets VdS CEA 4001:2024-01, meaning suitability for fire-protection systems in concrete structures.
• Versatile substrate support: Can be used in cracked, non-cracked concrete, and pre-stressed hollow-core slabs, making it suitable for a wide range of building types and applications.