VGS PLATE: The first reusable screw for lifting
While lifting and handling timber elements and CLT panels uncertainty simply isn't an option.
Until now, standard lifting procedures have required the use of "disposable" screws, discarded after each lifting operation to avoid the risk of hidden damage.
VGS PLATE was created to overcome this limitation: it is a screw engineered specifically for lifting that can also serve as a permanent metal-to-timber structural connector.
Why a purpose-designed lifting screw was needed
Traditional screws, no matter how strong, are not designed for reuse in lifting. During handling, they are subjected to dynamic, multi-directional stresses that can compromise their mechanical properties, such as the straightness of the shank, the integrity of the thread, the strength of the head or the ability to maintain their clamping force under dynamic loads
These deformations are not always visible, creating a safety risk if the screw were to be used again. This is why lifting screws are generally considered "disposable" across the industry.
VGS PLATE overturns this approach: It is engineered and tested for repeated use, delivering reliable, measurable performance and a consistently high level of safety
The differences: Geometry, control, reusability
The hexagonal, tapered head has been developed to ensure a stable, controlled connection with the main Rothoblaas systems used for handling timber elements:
This compatibility means a single screw can be used across all lifting systems, simplifying on-site operations and minimising the margin for error.
The double-head drive incorporates two separate drives:
TORX, for precise and controlled fastening;
Hex, for use with sockets even in awkward conditions, without the risk of damage.
Verified reuse: Safety and process
Colour coding
The screw is instantly recognisable thanks to the Rothoblaas black coating, a choice that serves three operational purposes:
to distinguish it from standard screws not suitable for lifting;
to enable quick visual checks on the screw's wear;
to maintain visual neutrality when the screw is left in place for permanent applications
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Colour code on its own isn't enough: Inspection with JIG REUSE
To ensure reusability, the screw must be inspected after each cycle. The JIG REUSE jig is used to check straightness, a key parameter for confirming that the screw has not been deformed during handling and lifting.
If the shank is perfectly straight, the screw can be used again safely. If it's shown to be deformed, it must be replaced.
VIDEO RIUSO - TEST ROTTURA CON RAPTOR
Why choose VGS PLATE & Rothoblaas
Dedicated testing
Its reusability is supported by a testing campaign developed together with third-party bodies.
Structural use
The screw is also certified for permanent metal-to-timber structural connections in buildings. The head is designed for pairing with plates.
Certifications
Certified to European CE standard ETA-11/0030, US standard ESR-4546 and Canadian standard ELC-4546
Compliance
Made from black electrogalvanized carbon steel, it can be used in atmospheric corrosivity classes C1–C2, timber corrosiveness classes T1–T2, and service classes SC1–SC2.
VGS PLATE & RELATED PRODUCTS
VGS PLATE compatibility means a single screw can be used across all lifting systems, simplifying on-site operations and minimising the margin for error.
FAQ
WHAT MAKES HBS PLATE DIFFERENT FROM STANDARD SCREWS FOR STEEL-TO-TIMBER CONNECTIONS?
The HBS PLATE stands out for its refined geometry and controlled performance. Every transition along the screw is smooth, reducing stress concentration and ensuring consistent driving torque. The slightly slower thread pitch allows for greater control during installation — particularly in the final stage, when the screw approaches the steel plate, which is the most critical moment.
Is a visual check enough to decide whether a VGS PLATE screw can be reused?
What typically makes a lifting screw non-reusable?
Any permanent deformation, damaged threads, corrosion, impact marks, or abnormal wear. If installation/removal involved uncontrolled torque or the screw’s history is uncertain, treat it as non-reusable.
How do we manage “chain of custody” for controlled reuse on site?
Separate screws intended for reuse from new stock, limit the number of cycles, and keep basic traceability (dedicated kits, counted uses, check at every cycle). Without process control, “verified reuse” becomes guesswork.
Why is over-torque a critical factor for reuse decisions?
Because excessive tightening can introduce damage that isn’t obvious at first glance but can reduce reliability under lifting loads. Managing torque during installation is as important as checking the screw after removal.
Does reuse really reduce cost if you add traceability and inspections?
Only if the process is streamlined. If tracking, segregation, and checks are treated as “extra work,” the savings disappear. Reuse works when it is planned: dedicated kits, simple counting, clear reject rules.