EVT40C-ALB — Aluminum Clamp for 38mm to 41mm Tubing

The EVT40C-ALB is a lightweight aluminum clamp for 38mm to 41mm (1.5-inch range) OD tubing, truss, and pipe — rated at 100 kg safe working load with 1,757.9 kN tensile strength, weighing just 0.133 kg, and TUV Certified. The silver anodized finish integrates with standard aluminum truss and pipe systems, and the included M10 x 30mm bolt with spring lock washer connects directly to standard M10 fixture yokes and mounting brackets. At 0.133 kg, this is one of the lightest clamps in the EVT40C family — deploy in quantity across a full rig without meaningful impact on the total hardware load calculation.

Function and Compatibility:

The EVT40C-ALB clamps to any 38mm to 41mm OD round tube or pipe through a wing nut collar assembly. The collar opens counterclockwise, seats onto the tube, closes, and locks with the wing nut tightened clockwise. The included M10 x 30mm bolt with spring lock washer connects to any fixture yoke or accessory bracket with a standard M10 mounting slot, with the spring lock washer maintaining bolt tension under vibration and thermal cycling. The anodized surface treatment protects the aluminum body from moisture and environmental exposure under normal use. Compatible with standard 38mm to 41mm round tube, pipe, and structural members in the 1.5-inch diameter range used in display systems, lighting grids, and overhead installations.

Key Features

• 38mm to 41mm Tube Fit: Designed for 38mm to 41mm OD tubing in the 1.5-inch diameter range — verify your tube's exact OD falls within this range before ordering.
• 100 kg Safe Working Load: TUV Certified at 100 kg SWL with 1,757.9 kN tensile strength — for professional lighting fixtures and accessories on 1.5-inch tube and pipe.
• Lightweight at 0.133 kg: One of the lightest clamps in the EVT40C family — negligible per-clamp weight for quantity deployment across a full rig.
• M10 Attachment Bolt Included: Ships with M10 x 30mm bolt and spring lock washer — connects to any standard M10 fixture yoke or mounting bracket.
• Silver Anodized Finish: Factory-applied anodized surface provides corrosion resistance and integrates visually with standard silver aluminum truss and pipe systems.
• 6061-T6 Aluminum Body: High-strength structural aluminum construction.
• S45C Carbon Steel Hardware: High-strength S45C carbon steel fasteners for reliable long-term clamping performance.
• TUV 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 EVT40C-ALB 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 EVT40C-ALB 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 EVT40C-ALB into place.

Safety and Rigging Notice

Critical Rigging Guidelines:

• Load Rating: Do not exceed the 100 kg safe working load of the EVT40C-ALB or the rated capacity of the tube or pipe system it is installed on.
• Tube Diameter Verification: This clamp is designed for 38mm to 41mm OD tubing. Verify your tube's exact outer diameter falls within this range before installation — do not use on 48mm to 51mm (2-inch) truss tubes.
• Inspection: The EVT40C-ALB 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.