EVT35C-BJC — Black Light-Duty Aluminum Truss Clamp for 35mm Tubing

The EVT35C-BJC is a light-duty black aluminum clamp for 1.37-inch (35mm) OD tubing, truss, and pipe — the dark-finish mounting solution for cable management hooks, small signage brackets, sensor mounts, and light-duty accessories on narrow-chord truss systems and 35mm pipe where the installation requires every visible component to match a black overhead structure. Rated at a max shear load of 30 kg with 11.64 kN tensile strength and TUV Nord Certified, the EVT35C-BJC is built from 6061-T6 aluminum alloy with an M10 x 30mm bolt and spring lock washer. The black finish absorbs light instead of reflecting it — keeping the clamp invisible in dark overhead environments where a silver clamp would stand out against the surrounding structure.

Function and Compatibility:

The EVT35C-BJC mounts to any 35mm OD round tube or pipe through a bolt-and-collar assembly secured with a wing nut. The included M10 x 30mm bolt with spring lock washer connects to any fixture or accessory bracket with a standard M10 mounting slot. The spring lock washer maintains bolt tension under vibration and thermal cycling, keeping the clamp secure without re-tightening. The black finish on the aluminum body eliminates the reflective silver surface that catches light in dark overhead grids, stage environments, and architectural ceilings where hardware visibility needs to be minimized. Compatible with EVT220S and EVT220T series truss main chords, standard 35mm aluminum pipe, and any round tube in the 35mm outer diameter range.

Key Features

• 35mm Tube Fit: Designed for 1.37-inch (35mm) OD tubing — the standard clamp size for EVT220S, EVT220T, and other light-duty truss systems with 35mm main chords.
• Black Finish: Dark surface absorbs light and integrates with black truss systems, dark ceilings, and stage environments where silver hardware creates an unwanted visual contrast.
• Light-Duty Load Rating: Rated at max shear load 30 kg and tensile strength 11.64 kN — suited for cable management, small signage, sensor mounts, and light accessory hardware.
• M10 Attachment Bolt Included: Ships with M10 x 30mm bolt and spring lock washer — ready to connect to any accessory bracket with a standard M10 mounting slot.
• 6061-T6 Aluminum Body: High-strength structural aluminum — lightweight for quantity use across a full installation.
• 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 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 EVT35C-BJC 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 EVT35C-BJC 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 EVT35C-BJC into place.

Safety and Rigging Notice

Critical Rigging Guidelines:

• Load Rating: Do not exceed the rated load capacity of the EVT35C-BJC or the truss system it is installed on.
• Inspection: The EVT35C-BJC 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.