EVT290A‑CS40 spacer with 40 mm extension and brushed aluminum finish
EVT290A‑CS40 technical drawing showing a 40 mm (1.57") spacer segment
Male-to-male conical coupler spacer installed between truss segments in a 290 mm system
EVT290A‑CS40 spacer with 40 mm extension and brushed aluminum finish
EVT290A‑CS40 technical drawing showing a 40 mm (1.57") spacer segment
Male-to-male conical coupler spacer installed between truss segments in a 290 mm system

EVT290A-CS40

Original price was: $39.00.Current price is: $26.00.

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

Dimensions & Specs
Spacer Length: 1.57 in (40 mm)
Outer Diameter: 1.96 in (50 mm) (Matches standard truss tubing)
Function: Expands truss length for custom measurements and adjustments

Construction
Material Type: Aluminum Alloy EN AW-6061 T6
Type: Double-Ended Male Conical Coupler
Compatibility: Fits standard 290mm Truss Conical Connection points

Finish & Features
Surface: Aluminum Brush Finish
Included: 40mm Spacer Coupler Only
Note: Coupler Pins and Cotter Pins are NOT included
Weight: 0.75 lb (0.34 kg)

In stock

SKU: EVT290A-CS40 Categories: , , ,

EVT290S Truss Systems Knowledge Center

EVT290A-CS40 40 mm (1.57 in) Male Truss Coupler Spacer.
Adds 40 mm to One 290 mm Conical Truss Connection.

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 truss connection. Before installing, confirm the connection actually requires 40 mm and that the complete joint — including truss receivers, conical hardware, coupler-pin length, and retaining hardware — will still work with the spacer in place. It is not a truss section, an independent support point, or a direct load-attachment location.

Product Facts

Model / SKUEVT290A-CS40
Product TypeDouble-Ended Male Conical Coupler Spacer
Added Length40 mm / 1.57 in
Outer Diameter50 mm / 1.96 in
MaterialAluminum Alloy EN AW-6061 T6
Component Weight0.75 lb / 0.34 kg
40 mmLength Added
50 mmOuter Diameter
120 mmOverall Height
0.75 lbComponent Weight
Not IncludedCoupler-Pins / R-Clips

What It Is

A Fixed 40 mm Coupler Spacer for One Specific Connection Condition.

The EVT290A-CS40 is a single-piece, double-ended male conical spacer with an integrated 40 mm collar. It is machined from Aluminum Alloy EN AW-6061 T6 with a brushed aluminum finish that matches standard aluminum truss systems.

Fixed 40 mm Collar
Adds a fixed 40 mm (1.57 in); it does not provide adjustable travel or telescoping length.
Male-to-Male Form
Provides male conical ends for insertion into the receivers of adjoining compatible truss sections.
Brushed Aluminum Finish
The brushed aluminum surface visually coordinates with standard aluminum truss systems.
Connection Component
Modifies one connection — it is not a truss section, separate support point, or direct load-attachment location.

What It Changes

It Adds 40 mm to One Joint. It Does Not Create a New Load Point.

The spacer adds 40 mm (1.57 in) at the selected, compatible joint. It does not independently establish allowable span, load capacity, pick-point location, or support arrangement.

Changes
Adds 40 mm (1.57 in) to the selected connection length.
Does Not Change
Does not establish a load rating or support configuration for the modified structure.
Does Not Include
Does not include coupler-pins, r-clips, or other retaining hardware.
Does Not Permit
Does not permit direct load attachment or support from the spacer joint.

Application Uses

Close a Larger Measured Gap at a Single Connection.

The EVT290A-CS40 is used wherever a 290 mm truss system comes up 40 mm short or long at a single connection point — a difference too large for the 10, 20, or 30 mm spacers, but still a single-connection adjustment rather than a structural rework.

01
Custom Measurement Adjustments
Close a 40 mm gap in a 290 mm truss system without cutting or replacing a truss section.
02
Architectural Alignment
Match a reviewed interface with measured display, exhibit, or architectural conditions.
03
Technical Frame Adjustments
Adjust controlled dimensions around cameras, sensors, lighting, and display interfaces.
04
EVT290S and F34 Truss Systems
Adjust measurements in EVT290S or F34-format 290 mm square truss systems using matching hardware.

Selection Guidance

Select the CS40 When the Truss System Requires a 40 mm Addition.

Use the EVT290A-CS40 when the connection requires a fixed 40 mm (1.57 in) addition 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 requirement.

Measured 40 mm Difference
Use when the connection identifies a fixed 40 mm addition at one specific compatible joint.
Custom Measurement Alignment
Use in a reviewed display, exhibit, architectural, lighting, or technical setup where 40 mm is the required addition.
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 addition, or replace a required engineered connection solution.

What's Included

One Spacer. Retaining Hardware Sold Separately.

The EVT290A-CS40 ships as a single double-ended male conical spacer. It does not include coupler-pins or r-clips — these must be sourced separately and matched to the completed connection.

1 Male-to-Male Spacer
A double-ended conical coupler that inserts between two compatible truss receivers.
Brushed Aluminum
Made from Aluminum Alloy EN AW-6061 T6 with a brushed aluminum finish.
No Retaining Hardware
Coupler-pins and r-clips are not included and must be selected to match the completed connection.
Matches Standard Tubing
The 50 mm outer diameter matches standard 290 mm truss tubing.

Technical Reference

EVT290A-CS40 Specifications.

The following values identify the spacer dimensions, material, weight, and listed compatibility. Confirm current manufacturer drawings, instructions, retaining hardware, and technical documentation before ordering or assembling a truss system.

Identification

Product Details

Model / SKUEVT290A-CS40
BrandEvolve Truss
Product TypeDouble-Ended Male Conical Coupler Spacer
Weight0.75 lb / 0.34 kg

Dimensions

Size

Spacer Length40 mm / 1.57 in
Outer Diameter50 mm / 1.96 in
Documented Dimensions50 x 120 x 50 mm

Construction

Material and Finish

MaterialAluminum Alloy EN AW-6061 T6
FinishBrushed Aluminum
Included HardwareNone (Coupler-Pins/R-Clips Not Included)

Compatibility

System Fit

Primary SystemsEVT290I, EVT290T, EVT290S
Listed CompatibilityF34 and EVT50ST Single Tube Truss

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. Confirm the actual receiver spacing, conical coupler dimensions, chord dimensions, coupler-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 confirmed.
F34 Compatibility
Compatible with matching F34 290 mm square dimensions and conical connection hardware when the interface fits correctly.
Full Coupler Engagement
Confirm the selected conical coupler is long enough to fully engage both truss receivers after the 40 mm spacer is installed.
Mixed-System Confirmation
Test-fit mixed-brand or separately sourced components on the ground before lifting and confirm the completed connection and structure.

Installation Checks

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

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

01 — Confirm the Requirement
Confirm that the truss system requires a fixed 40 mm (1.57 in) addition at the selected connection.
02 — Inspect Components
Do not use damaged, deformed, cracked, worn, or otherwise compromised spacers, truss receivers, couplers, coupler-pins, or retaining hardware.
03 — Test-Fit Before Lifting
Confirm that the spacer, receivers, coupler arrangement, coupler-pins, and retaining hardware fit together with required engagement.
04 — Confirm 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 coupler-pins and r-clips; they are not included with the spacer coupler.
06 — Inspect the Complete Structure
Confirm 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 One Connection. 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, and do not support loads directly from the spacer connection point.

Do not exceed the capacity of the spacer or the truss system it modifies.
Do not support loads directly from the spacer connection.
Confirm full conical coupler engagement in both receivers after the 40 mm spacer is installed.
Use coupler-pins and retention hardware of sufficient length and suitability for the completed connection.
Have the complete structure reviewed by a licensed professional engineer.

Variant Relationship

Start With the Gap You Measured. Then Choose the Matching Spacer.

Spacer length and finish must match what the connection requires. Do not stack, substitute, or combine variants unless the exact arrangement is approved for the complete structure.

CS10 / CS10 Black
10 mm (0.39 in), brushed aluminum or matte black.
CS20 / CS20 Black
20 mm (0.79 in), brushed aluminum or matte black.
CS30 / CS30 Black
30 mm (1.18 in), brushed aluminum or matte black.
CS40 (This Product)
40 mm (1.57 in), brushed aluminum.
Do Not Combine Smaller Spacers to Reach 40 mm
A 40 mm requirement calls for this single-piece spacer, not a combination of smaller units. Do not stack spacers or combine dimensions without engineering approval for the complete connection — a combined arrangement changes connection depth and requires review.
Confirm Current Documentation Before Ordering or Installing
Confirm current manufacturer drawings, instructions, and required retaining hardware before ordering or installing the EVT290A-CS40. Confirm compatibility with the specific EVT290I, EVT290T, EVT290S, F34-format, or EVT50ST truss components being used, and physically test-fit the complete connection on the ground before lifting. Suspended, public-facing, outdoor, or other load-bearing structures using this spacer require project-specific review by a licensed professional engineer before use.

Product Questions

EVT290A-CS40 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.

Are coupler-pins included?

No. The product includes the 40 mm spacer coupler only — coupler-pins and r-clips are not included and must be sourced separately.

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 depth and requires review.

Need to Close a 40 mm Gap in a 290 mm Truss System?

Contact us for compatibility checks, hardware guidance, measurement review, quantities, CAD resources, and engineering coordination.

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