Name: EVT290A‑CS40 — 40 mm (1.57") Male‑to‑Male Spacer for 290 mm Truss Systems
Brand: Evolve Truss
SKU: EVT290A-CS40
Price: 26.00 USD
Availability: InStock

EVT290S System Knowledge Center

EVT290A-CS40 40 mm / 1.57 in Truss Spacer.
A Male-to-Male Conical Spacer for Modular 290 mm Truss Builds.

The EVT290A-CS40 is a double-ended male conical aluminum spacer that adds a fixed 40 mm / 1.57 in at one compatible 290 mm square truss connection. Its brushed aluminum finish matches standard aluminum truss systems, while its 50 mm / 1.96 in outside diameter aligns with the documented main-tube interface. The spacer changes connection geometry at one joint; it is not a truss section, independent support point, or direct load-attachment location. Verify full coupler engagement, pins, retention hardware, and the complete engineered structure before lifting or applying load.

Product Facts

Model / SKUEVT290A-CS40

Product ClassMale Truss Coupler Spacer

Added Length40 mm / 1.57 in

Outside Diameter50 mm / 1.96 in

FinishBrushed Aluminum

Weight0.75 lb / 0.34 kg

40 mmAdded Connection Length

1.57 inAdded Connection Length

50 mmOutside Diameter

Brushed AluminumFinish

290 mmSquare Conical Truss Fit

Product Overview

A Fixed 40 mm Spacer for One Compatible 290 mm Conical Truss Connection.

The EVT290A-CS40 is a single-piece male-to-male conical spacer with an integrated 40 mm collar. It inserts into compatible conical receivers between adjoining 290 mm square truss sections and creates a fixed 40 mm / 1.57 in correction at that joint. The brushed aluminum finish supports visual continuity in standard aluminum-truss installations.

Fixed 40 mm Collar

Adds a fixed 40 mm / 1.57 in dimension at one selected connection. It does not provide adjustable travel or telescoping length.

Male-to-Male Conical Form

Provides male conical ends for insertion into the receivers of adjoining compatible truss sections.

Brushed Aluminum Finish

The brushed aluminum surface is intended to visually coordinate with standard aluminum truss systems.

Connection-Level Component

The spacer changes one joint. It is not a truss section, separate support point, or direct load-attachment location.

What It Changes

It Adds 40 mm at One Joint. It Does Not Establish a New Structural Rating.

When installed in a compatible conical connection, the spacer increases the effective length at the selected joint by 40 mm / 1.57 in. It does not independently establish allowable span, load capacity, pick-point location, support arrangement, or approval for the modified structure. Evaluate the complete system after the connection geometry has changed.

Changes

Adds a fixed 40 mm / 1.57 in to the effective length of one selected truss connection.

Does Not Change

Does not independently establish a load rating, allowable span, pick-point location, or support plan.

Does Not Include

The product source identifies the 40 mm spacer coupler only. Coupler pins and cotter pins are not included.

Does Not Permit

Does not permit direct attachment or support of loads from the spacer connection point.

Selection Guidance

Select the CS40 When The Layout Requires a 40 mm Correction.

Use the EVT290A-CS40 when the documented layout requires a fixed 40 mm / 1.57 in correction at one compatible 290 mm conical truss joint. Do not use it as an adjustable fitting, a generic extension, a repair for damaged truss, or a substitute for a different measured correction.

Measured 40 mm Difference

Use when the approved layout identifies a fixed 40 mm correction at one specific compatible connection.

Custom Layout Alignment

Use in a reviewed scenic, exhibit, architectural, lighting, or technical layout where 40 mm is the required correction.

Aluminum-Finish Systems

Use where a brushed aluminum connection accessory is appropriate for the planned truss finish.

Not an Adjustable Coupler

Do not use to force alignment, create an unmeasured correction, or replace a required engineered connection solution.

Technical Reference

EVT290A-CS40 Product Specifications.

Identification

Product Details

Model / SKUEVT290A-CS40

BrandEvolve Truss

Product TypeMale Truss Coupler Spacer

Connection FormDouble-Ended Male Conical

Spacer Geometry

Dimensions and Weight

Added Connection Length40 mm / 1.57 in

Outside Diameter50 mm / 1.96 in

Documented Dimensions50 x 120 x 50 mm

Weight0.75 lb / 0.34 kg

Construction

Material and Finish

MaterialEN AW-6061 T6 Aluminum Alloy

FinishBrushed Aluminum

Functional Output40 mm Connection-Length Expansion

Compatibility and Supply

System Dependencies

Connection FitStandard 290 mm Conical Connection Points

Compatible SystemsF34 and Standard 290 mm Square Conical Truss Systems

Included40 mm Spacer Coupler Only

Not IncludedCoupler Pins and Cotter Pins

System Compatibility

EVT290S, F34, and Compatible 290 mm Square Conical Truss Systems.

The EVT290A-CS40 is designed for compatible 290 mm square conical truss connection points, including EVT290S and F34-style systems. Verify the actual receiver spacing, conical coupler dimensions, chord geometry, pin length, retaining hardware, and complete structural plan before combining separately sourced components or lifting the completed structure.

EVT290S Compatibility

Designed to integrate with compatible EVT290S square truss sections, corners, bases, and accessories when the complete connection is physically verified.

F34 Compatibility

Compatible with matching F34 290 mm square geometry and conical connection hardware when the interface fits correctly.

Full Coupler Engagement

Verify that the selected conical coupler is long enough to fully engage both truss receivers after the 40 mm spacer is installed.

Mixed-System Verification

Test-fit mixed-brand or separately sourced components on the ground before lifting and verify the completed connection and structure.

Installation Checks

Confirm the 40 mm Requirement. Then Verify the Entire Connection.

The spacer changes the effective length and connection depth at one joint. Install it only after confirming the required 40 mm correction, inspecting the components, test-fitting the connection, and verifying coupler engagement, pins, retention hardware, and the complete structural plan.

01 — Confirm the Correction

Confirm that the approved layout requires a fixed 40 mm / 1.57 in correction at the selected connection.

02 — Inspect Components

Do not use damaged, deformed, cracked, worn, or otherwise compromised spacers, truss receivers, couplers, pins, or retaining hardware.

03 — Test-Fit Before Lifting

Confirm that the spacer, receivers, coupler arrangement, pins, and retaining hardware fit together with required engagement.

04 — Verify Coupler Engagement

Confirm that the selected conical coupler fully engages both truss receivers after the 40 mm spacer is added.

05 — Install Retaining Hardware

Supply and install the required pins and cotter pins. They are not included with the spacer coupler.

06 — Inspect the Complete Structure

Verify the completed connection and surrounding structure against the approved plan before any load is applied or the structure is lifted.

Safety and Engineering

The Spacer Changes Connection Geometry. It Does Not Override System Limits.

The EVT290A-CS40 is a structural connection component. It does not independently establish a load rating for the modified structure. Do not exceed the capacity of the spacer or the truss system it modifies. Do not support loads directly from the spacer connection point. Review the complete structure—including the modified joint—for the actual installation.

Do not exceed the capacity of the spacer or the truss system it modifies.

Do not attach or support loads directly from the connection where the spacer is installed.

Do not use the spacer to force a misaligned connection or compensate for damaged truss components.

Verify full conical coupler engagement in both receivers after the spacer is installed.

Use pins and cotter pins of sufficient length and suitability for the completed connection geometry.

Do not use fewer connectors, pins, or retainers than the approved connection configuration requires.

Test-fit mixed-brand connections on the ground before lifting.

Have the complete structure reviewed by a qualified authority or licensed professional engineer where required.

Evidence and Review

What This Page Confirms, and What the Installed Connection Must Still Establish.

This page confirms the supplied product facts: a fixed 40 mm correction, 50 mm outside diameter, 50 x 120 x 50 mm documented dimensions, EN AW-6061 T6 aluminum, brushed aluminum finish, 0.75 lb weight, and the stated conical connection interface. It does not establish a safe span, capacity, pick point, support plan, mixed-brand installation, or complete structural outcome.

Confirmed Product Facts

40 mm / 1.57 in fixed correction, 50 mm outside diameter, 50 x 120 x 50 mm documented dimensions, EN AW-6061 T6 aluminum, brushed finish, and 0.75 lb / 0.34 kg weight.

Installation-Specific Facts

Actual receiver fit, coupler configuration, engagement depth, pin length, retention method, structural capacity, load arrangement, and required approvals must be determined for the project.

Evidence Worth Retaining

Keep the current technical drawing, component specification, ground test-fit record, hardware selection, inspection record, and qualified reviewer approval with the project file.

No Invented Capacity Claims

Do not describe the spacer as suitable for a particular load, brand mix, suspended layout, or installation type unless supported by attributable technical records and required review.

Product Questions

Frequently Asked Questions.

What does the EVT290A-CS40 do?

It adds a fixed 40 mm / 1.57 in at one compatible 290 mm square conical truss connection.

What does the product include?

The source identifies the 40 mm spacer coupler only. Coupler pins and cotter pins are not included.

What truss systems does it fit?

It is designed for compatible 290 mm square conical truss connections, including EVT290S and F34-style systems. Verify the actual interface, coupler engagement, pins, and complete structural design before use.

Can it be used as a load point?

No. Do not attach or support loads directly from the spacer connection point. The complete structure must be evaluated for the actual installation.

Can I combine this spacer with other spacers?

Do not stack or combine spacers unless the exact arrangement has been approved for the complete structure. A combined arrangement changes connection geometry and requires review.

Why does coupler engagement matter?

The 40 mm collar changes the connection geometry. Verify that the selected coupler fully engages both truss receivers and that the required pins and retention hardware remain suitable before lifting or applying load.

Need to close a 40 mm gap in a 290 mm truss layout?

Contact us for product identification, compatibility guidance, connection-hardware planning, layout review, spacer quantities, technical drawings, and engineering coordination.

Structural Solutions, Unmatched Innovation

EVT290A-CS40

EVT290A-CS40 — 40mm Coupler Spacer for 290mm Truss

EVT290A-CS40 40 mm / 1.57 in Truss Spacer.A Male-to-Male Conical Spacer for Modular 290 mm Truss Builds.