EVT40C-ALC — Aluminum Truss Clamp for 40mm Tubing

The EVT40C-ALC is a lightweight aluminum clamp for 40mm OD tubing, truss, and pipe — the mid-range mounting solution for accessories, sensors, cable management brackets, and light-duty fixtures on truss systems and structural pipe in the 40mm diameter range. Built from 6061-T6 aluminum alloy with S45C carbon steel hardware, the EVT40C-ALC uses a nylon-insert locknut closure that resists self-loosening under vibration and thermal cycling without a separate spring lock washer — suited to permanent and semi-permanent overhead installations where the clamp needs to hold its clamping force between service intervals. The included M6 x 10mm flanged button-head cap screw provides a low-profile attachment point for accessory brackets and fixture hardware with standard M6 mounting slots.

Function and Compatibility:

The EVT40C-ALC mounts to any 40mm OD round tube or pipe through a bolt-and-collar assembly. The collar opens, seats onto the tube, and closes before the M8 nylon-insert locknut is tightened clockwise to clamp the collar securely in place. The nylon insert grips the bolt thread and resists backing off under vibration and temperature variation, maintaining clamping force in overhead and wall-mounted applications without regular re-torquing. The included M6 x 10mm flanged button-head cap screw threads into any standard M6 accessory mounting slot, with the flanged head distributing clamping load across a wider bearing surface than a standard hex bolt. Compatible with any round tube or pipe in the 40mm outer diameter range used in exhibition structures, retail display systems, architectural installations, and overhead pipe grids.

Key Features

• 40mm Tube Fit: Designed for 40mm OD tubing — the mid-range clamp for applications requiring a larger tube fit than the 35mm range.
• Nylon-Insert Locknut Closure: M8 nylon-insert locknut resists self-loosening under vibration and thermal cycling — reliable long-term clamping for permanent and semi-permanent installations without re-tightening.
• M6 Flanged Button-Head Cap Screw: Low-profile flanged button-head attachment screw at M6 x 10mm — distributes load across a wider bearing surface and keeps a compact profile at the accessory connection point.
• 6061-T6 Aluminum Body: High-strength structural aluminum — lightweight for quantity use across a full installation without adding significant load to the structure.
• S45C Carbon Steel Hardware: High-strength S45C carbon steel fasteners for reliable long-term clamping performance.
• Wing Nut-Free Design: Nylon-insert locknut closure eliminates the wing nut — the clamp stays secure without periodic re-tightening under operational vibration.

Assembly Instructions

1. Release the nylon-insert locknut by turning it counterclockwise to release the bolt and open the collar.
2. Place the EVT40C-ALC on the truss, tube, or pipe and close the collar.
3. Put the bolt back in place with the washer and nylon-insert locknut above the collar.
4. Make sure the EVT40C-ALC is located in its proper place on the truss, tube, or pipe before tightening the nylon-insert locknut.
5. Turn the nylon-insert locknut clockwise to tighten and secure the EVT40C-ALC into place.

Safety and Rigging Notice

Critical Rigging Guidelines:

• Load Rating: Do not exceed the rated load capacity of the EVT40C-ALC or the truss system it is installed on.
• Inspection: The EVT40C-ALC 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.