EVT50C-EHDC — Extra Heavy-Duty 2-Inch Pro Truss Clamp

The EVT50C-EHDC is an extra heavy-duty 2-inch pro truss clamp for standard 48mm to 51mm (2-inch) OD trussing, tube, and pipe — the silver-finish version of the heavy-duty M12 clamp series, rated at tensile strength 36.77 kN and built for professional lighting fixtures, moving heads, and audio arrays that exceed the load capacity of standard M10 clamps. The M12 x 30mm attachment bolt with spring lock washer delivers increased shear resistance at the fixture connection point — verify that your fixture yoke accepts M12 hardware before ordering, as standard clamps are typically M10. Built from 6061-T6 aluminum alloy and TUV Nord Certified for professional rigging applications.

Function and Compatibility:

The EVT50C-EHDC clamps to any 48mm to 51mm OD round tube or pipe through the standard wing nut collar assembly. The collar opens counterclockwise, seats onto the tube, closes, and tightens with the wing nut clockwise to lock the clamp in place. The M12 x 30mm bolt with spring lock washer threads into any fixture yoke or bracket with a standard M12 mounting slot — the larger bolt diameter provides greater cross-sectional shear area than M10, supporting heavier fixture loads at the connection point. The spring lock washer maintains bolt tension under vibration and thermal cycling without re-tightening between uses. 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

• Extra Heavy-Duty M12 Hardware: Ships with M12 x 30mm bolt and spring lock washer — larger bolt diameter than standard M10 clamps for increased shear resistance under heavy fixture loads.
• Tensile Strength 36.77 kN: Rated for professional lighting fixtures, moving heads, and audio arrays that exceed the capacity of standard-duty clamps.
• 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: Premium structural aluminum construction for heavy-duty 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, 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-EHDC 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. Ensure the EVT50C-EHDC 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-EHDC into place.

Safety and Rigging Notice

Critical Rigging Guidelines:

• Load Rating: Do not exceed the rated load capacity of the EVT50C-EHDC or the truss system it is installed on.
• Fixture Yoke Compatibility: This clamp uses an M12 bolt. Ensure your fixture mounting bracket hole accepts M12 hardware — standard clamps are often M10.
• Inspection: The EVT50C-EHDC 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.