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Foundation screw for 550 mm terrace in galvanized steel FS-550 ROCK (A99)

FS550-ROCK-A99
Weasyfix

A 550 mm galvanized steel foundation screw designed for rocky soils, featuring a central M16 thread for connecting accessories. It supports a load of up to 900 kg.

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€75.85
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Out-of-Stock
Probably Shipping Date: 06/10/2026
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Description

Weasyfix 550 mm foundation screw for rocky soil

Is your land composed of large stones? Fortunately, the Weasyfix FS-550 ROCK foundation screw is here! This foundation screw, featuring an M16 thread in the center of the head for attaching connectors, is intended strictly for rocky soils. Suitable for small exterior foundations, the screw supports a load of 900 kg. It guarantees a stable and secure construction and revolutionizes the installation of wood and tile terraces through its highly accessible design for everyone. Very simple to use, the terrace foundation screw is a solution that offers numerous advantages.

Warning: Do not use this foundation screw on standard soil or simply stony ground.

Advantages of the Weasyfix 550 mm foundation pile

  • Time-saving installation: Installation does not require pouring concrete. This is a valuable time saver for both the installation and the cleanup, leaving your garden intact even after the work is completed.

  • No digging required: There is no need to dig to place the screw; you simply drive it into the ground using the Weasylectric electric bolt driver.

  • Continuous workflow: Once the screw is in the ground, the installation of the structure can begin immediately.

  • Eco-friendly: The wood terrace foundation screw is durable, ecological, and neutral for the soil in accordance with the DIN EN 18300 standard.

Installation steps for a terrace foundation screw

Only three steps are needed to install the terrace foundation screw. The installation of each pile can be entirely completed by a single person by following these steps:

  1. To ensure proper placement of the foundation screw, make a pre-hole of 50 to 70 mm in diameter. The depth of the pre-hole should be slightly less than the intended insertion depth of the screw.

  2. Engage the screw by hand, then place the driving head on the screw using the bolt intended for this purpose. This must be locked to crush the compression washer.

  3. To have a stable and level terrace foundation, place the Weasylectric on the driving head. Thanks to the integrated level on the tool, you can monitor the positioning of the screw. Once the desired depth is reached, lift the machine and unscrew the driving head. You are all set!

Technical characteristics of the Weasyfix foundation pile

  • Material: 3 mm hot-dip galvanized steel according to DIN EN ISO 1461 standard

  • Appearance: 3 holes and an M16 thread in the center

  • Number of coils: 6 wide coils for better anchoring into the ground

  • Tip shape: Pointed for easy and precise installation

  • Load: 550 mm in length, supporting up to 900 kg in stable, compact rocky soil

  • Weight: 5.43 kg

Product Details
FS550-ROCK-A99

Data sheet

Width
120 mm
Type
Foundations
Use
Foundations and structures for terraces
Length
550 mm
Material
Galvanized steel
Type of soil
Rocky
Compatibility
Wood Basic, Wood Basic 3D, L 85/38, Connect Stone C, Connect Stone C+, Connect Wall C
Diameter
120 mm

Specific References

EAN13
9504313227532
Attachments
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