EVT50C-BEHNC — Black Extra Heavy-Duty Narrow 2-Inch Pro Truss Clamp

The EVT50C-BEHNC is a black powder coat extra heavy-duty narrow truss clamp for 2-inch (50mm) OD tubing, truss, and pipe — a fixed single-collar fixture clamp rated at max shear load 100 kg with 44.89 kN tensile strength for professional lighting fixtures, speakers, and rigging accessories in installations where the clamp needs to stay invisible against a dark overhead structure. The narrow body profile reduces clearance requirements between adjacent clamp positions in high-density rig configurations, and the M12 x 30mm bolt with spring lock washer provides a heavy-duty fixture attachment point at any standard M12 mounting slot. Built from 6061-T6 aluminum alloy, finished in black powder coat, and TUV Nord Certified.

Function and Compatibility:

The EVT50C-BEHNC is a fixed clamp — the collar clamps to the tube and the fixture bolts to the clamp through the M12 attachment bolt, with no swivel or rotation at the clamp body. The M12 x 30mm bolt with spring lock washer connects directly to any fixture yoke or accessory bracket with a standard M12 mounting slot — a larger bolt diameter than the M10 used on most standard clamps, providing increased clamping strength at the fixture connection point under heavy fixture loads. The spring lock washer maintains bolt tension under vibration and thermal cycling without re-tightening. The narrow body keeps the clamp compact between adjacent positions on the tube, and the black powder coat absorbs light under every stage and overhead lighting condition — keeping the clamp invisible in dark rigs where silver hardware would stand out. 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

• Black Powder Coat Finish: Factory-applied black powder coat absorbs light and integrates with black truss systems, dark stage environments, and any installation where silver hardware would create visible contrast in the overhead grid.
• Narrow Body Profile: Compact form factor reduces clearance requirements between adjacent clamp positions on the tube — ideal for high-density rig configurations where spacing between clamps is limited.
• 100 kg Shear Load Rating: Rated at max shear load 100 kg and tensile strength 44.89 kN — TUV Nord Certified for professional lighting fixtures, speakers, and rigging accessories on 2-inch truss and pipe.
• M12 Attachment Bolt Included: Ships with M12 x 30mm bolt and spring lock washer — larger bolt diameter than standard M10 clamps for increased fixture connection strength under heavy loads.
• 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 construction for professional rigging duty.
• S45C Carbon Steel Hardware: High-strength S45C carbon steel fasteners for reliable long-term clamping performance.
• TUV Nord Certified: Independently tested and certified load ratings.
• Wing Nut Closure: Tool-free collar tightening — open, seat, position, 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-BEHNC 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-BEHNC is located in its proper place on the truss, tube, or pipe before tightening the wing nut.
5. Turn the wing nut clockwise to tighten and secure the EVT50C-BEHNC into place.

Safety and Rigging Notice

Critical Rigging Guidelines:

• Load Rating: Do not exceed the 100 kg max shear load of the EVT50C-BEHNC or the rated capacity of the truss system it is installed on.
• Inspection: The EVT50C-BEHNC 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.