CONCRETE SCREW EUSA4-C, COUNTERSUNK HEAD, STAINLESS STEEL A4
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ESSVE concrete screw EUSA4 is a high-quality concrete screw designed for installation where high safety assembly is required, e.g. balcony railings, fall protection, steel plates, etc. It is CE-marked through an ETA (Option 1) and approved for use in both cracked and uncracked concrete. The ETA includes resistance to fire (R30-R120). In addition, the ETA permits adjustment of the installation with shims.
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Stainless steel A4 permits installation in aggressive environments, both in industry and near oceans. According to Eurocode
guidelines (EN 1992-4), stainless steel fasteners should be used in outdoor environments and permanent moist indoor environments to obtain a minimum working life of 50 years.
The outer thread at the screw tip has welded carbide inserts that easily cuts thread in soft and hard concrete (C20/25 - C50/60).
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When assembling, impact screwdrivers are recommended. The concrete screw does not require a preload torque to ensure the fixing (such as e.g. wedge anchors) The final torque applied should not be larger than what is required to mount the detail. Avoid over-tightening. Further information of the installation is included in the ETA.
A 10 mm adjustment of the installation is permitted. The embedment depth of the screw after adjustment needs to be equal to hnom or deeper.
Technical Specification
| Application environment | Outdoors/Close to coast |
| Approvals | CE,ETA |
| Head shape | Countersunk |
| Main Materials | Stainless steel A4 |
| Corrosion resistance class | C5 A4 |
| Material to install in | Concrete |
| Approval |
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| ETA-18/1138 Cracked concrete for all dimensions (EN) |
| ETA-24/1152 Redundant systems and hollow-core slabs for dimension 7.5(6) (EN) |
| Certificate |
| General Product Safety Regulation (GPSR) |
| Declaration of performance |
| 18-EUS2-A4-HCR (EN) |
| Product Data Sheet |
| Product sheet |
| Technical Document |
| Technical data sheet ESSVE Concrete screw EUSA4 |