EVT50C-BHS — Two-Tone Half-Coupler Swivel Clamp for 48mm to 51mm Tubing

The EVT50C-BHS is a two-tone silver and black half-coupler swivel clamp for 48mm to 51mm (2-inch) OD truss, tube, and pipe — a professional-grade rigging clamp with dual load ratings reflecting its structural capacity across two loading directions: 500 kg safe working load for axial and tensile loading, and 100 kg max shear load for side-loaded fixture and accessory mounting. Built from 6061-T6 aluminum alloy with an anodized surface treatment in a two-tone silver and black finish, weighing 1.02 kg, and TUV Certified. The half-coupler profile seats against the tube for a close-fitting low-profile grip, and the swivel body allows the attached fixture or hardware to be positioned at any angle without repositioning the clamp on the tube.

Function and Compatibility:

The EVT50C-BHS clamps to any 48mm to 51mm OD round tube or pipe through a wing nut collar assembly. The half-coupler body seats closely against the tube surface for a stable, low-profile grip, and the swivel joint between the collar and the attachment point allows connected hardware to be aimed or positioned at any angle. The two-tone silver and black anodized finish provides a distinctive professional appearance while the anodized surface treatment protects the aluminum body from moisture and environmental exposure under normal use. Compatible with EVT290S, EVT290I, F34 series truss main chords, and standard Schedule 40 aluminum pipe in the 48mm to 51mm outer diameter range.

Key Features

• Dual Load Ratings: Rated at 500 kg safe working load (axial and tensile) and 100 kg max shear load (side loading) — two independent ratings reflecting structural capacity across different loading directions.
• Swivel Body: The swivel joint between the collar and the attachment point allows connected fixtures and hardware to be aimed or adjusted at any angle without repositioning the clamp on the tube.
• Two-Tone Silver and Black Finish: Anodized silver and black surface treatment provides a distinctive two-tone professional appearance with corrosion resistance for both indoor and outdoor use.
• 48mm to 51mm Tube Fit: Fits standard 48mm to 51mm (2-inch) OD tubing — compatible with F34 truss, EVT290S, EVT290I main chords, and Schedule 40 aluminum pipe.
• 6061-T6 Aluminum Body: High-strength structural aluminum at 1.02 kg — substantial enough for heavy-duty rigging applications while remaining manageable for quantity installation.
• Anodized Surface Treatment: Factory-applied anodized finish protects the aluminum body from moisture, UV exposure, and environmental contact under normal use.
• TUV Certified: Independently tested and certified load ratings.
• S45C Carbon Steel Hardware: High-strength S45C carbon steel fasteners for reliable long-term clamping performance.
• Wing Nut Closure: Tool-free collar tightening — open, seat, and lock without wrenches or hex keys.

Assembly Instructions

1. Release the wing nut by turning it counterclockwise to release the bolt and open the collar.
2. Place the EVT50C-BHS on the truss, tube, or pipe and close the collar.
3. Put the bolt back in place with the washer and wing nut above the collar.
4. Make sure the EVT50C-BHS is located in its proper area of the truss, tube, or pipe before tightening the wing nut.
5. Turn the wing nut clockwise to tighten and secure the EVT50C-BHS into place.

Safety and Rigging Notice

Critical Rigging Guidelines:

• Load Ratings: Do not exceed the 500 kg safe working load for axial and tensile applications or the 100 kg max shear load for side-loaded applications. Apply the correct rating for the loading direction of your installation.
• Inspection: The EVT50C-BHS should be fully inspected before every use. In the occurrence of any damage or defect, the clamp should not be used.
• Secondary Safety: The use of safety cables is recommended for maximum security on all overhead applications.
• Professional Review: The purchase of this product does not authorize or approve a specific installation or use. A licensed professional engineer shall review all structures, lighting plots, or other clamp uses.

Technical Resources and Project Support

Need load tables, CAD files, or engineering documentation for this product? Contact the Evolve Truss team — we'll get you what you need.

Disclaimer and Guidance Statement: The purchase of any product shall not be construed as authorizing or approving a specific installation or usage. A licensed professional engineer shall review all structures, lighting plots, or any other product uses. While exhaustive efforts have been undertaken to ensure the precision of this information, Evolve Truss Worldwide, LLC hereby disclaims any and all liability for errors. These drawings are intended solely for the purpose of providing guidance and should not be construed as definitive representations.