EVT290A‑CS20 20 mm male‑to‑male conical coupler spacer for 290 mm truss systems
Technical drawing of EVT290A‑CS20 spacer showing 20 mm extension and 50 mm collar width
Male-to-male conical coupler spacer installed between truss segments in a 290 mm system
EVT290A‑CS20 20 mm male‑to‑male conical coupler spacer for 290 mm truss systems
Technical drawing of EVT290A‑CS20 spacer showing 20 mm extension and 50 mm collar width
Male-to-male conical coupler spacer installed between truss segments in a 290 mm system

EVT290A-CS20

Original price was: $35.00.Current price is: $23.00.

EVT290A-CS20 — 20mm Coupler Spacer for 290mm Truss

Dimensions & Specs
Spacer Length: 0.79 in (20 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: 20mm Spacer Coupler Only
Note: Coupler Pins and Cotter Pins are NOT included
Weight: 0.52 lb (0.24 kg)

In stock

SKU: EVT290A-CS20 Categories: , , ,

EVT290S Truss Systems Knowledge Center

EVT290A-CS20 20 mm (0.79 in) Male Truss Coupler Spacer.
Adds 20 mm at One 290 mm Conical Truss Connection.

The EVT290A-CS20 is a double-ended male conical aluminum spacer that adds a fixed 20 mm (0.79 in) at one compatible 290 mm truss connection. Before installing, confirm the connection actually requires 20 mm and that the complete joint — including receiver spacing, conical coupler engagement, 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-CS20
Product TypeDouble-Ended Male Conical Coupler Spacer
Added Length20 mm / 0.79 in
Outer Diameter50 mm / 1.96 in
MaterialAluminum Alloy EN AW-6061 T6
Component Weight0.52 lb / 0.24 kg
20 mmLength Added
50 mmOuter Diameter
100 mmOverall Height
0.52 lbComponent Weight
Not IncludedCoupler-Pins / R-Clips

What It Is

A Fixed 20 mm Spacer for One Specific Connection Condition.

The EVT290A-CS20 is a single-piece, double-ended male conical spacer with an integrated 20 mm collar. It is machined from Aluminum Alloy EN AW-6061 T6 with a brushed aluminum finish.

Fixed 20 mm Collar
Adds 20 mm (0.79 in); it does not provide adjustable travel.
Male-to-Male Form
Provides male conical ends for compatible truss receivers.
Brushed Aluminum
Machined from Aluminum Alloy EN AW-6061 T6 with a brushed finish.
Connection Component
It is not a truss section, support point, or direct load-attachment location.

What It Changes

It Adds 20 mm to One Joint. The Entire Joint Must Still Work as a Joint.

The spacer adds 20 mm (0.79 in) at the selected connection. It does not independently establish a load rating, allowable span, pick-point location, or support arrangement for the modified structure.

Changes
Adds 20 mm (0.79 in) to the selected connection length.
Does Not Change
Does not establish allowable span or a load rating 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-CS20 is used wherever a 290 mm truss system comes up 20 mm short or long at a single connection point — a difference too large for the 10 mm spacer to address, but still a single-connection adjustment rather than a structural rework.

01
Custom Measurement Adjustments
Close a 20 mm gap in a 290 mm truss system without cutting or replacing a truss section.
02
Planned Grids and Frames
Adjust technical grids, frames, and structures where a measured interface calls for 20 mm at one connection.
03
Retrofit and Rework
Adjust an existing truss system to accommodate a new fixture, wall, or structural obstruction.
04
EVT290S and F34 Truss Systems
Adjust measurements in EVT290S or F34-format 290 mm square truss systems using matching hardware.

Selection Guidance

Select It Only for an Actual 20 mm Need. Do Not Treat It as Two 10 mm Decisions.

A 20 mm spacer modifies the connection as one component. Select it only when the truss system requires a 20 mm (0.79 in) addition at that connection, and the coupler, coupler-pins, retainers, and truss receivers are confirmed to work together as a complete joint.

Measured 20 mm Difference
For a 20 mm addition at one specific connection.
Planned Structures
For grids, frames, and technical structures with measured interfaces.
Receiver and Coupler Check
For connections where full dual-receiver coupler engagement remains possible.
No Unapproved Stacking
Do not stack spacers or substitute combinations without approval for the complete structure.

What's Included

One Spacer. Retaining Hardware Sold Separately.

The EVT290A-CS20 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-CS20 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-CS20
BrandEvolve Truss
Product TypeDouble-Ended Male Conical Coupler Spacer
Weight0.52 lb / 0.24 kg

Dimensions

Size

Spacer Length20 mm / 0.79 in
Outer Diameter50 mm / 1.96 in
Overall Height100 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 Matching 290 mm Square Conical Truss Systems.

The EVT290A-CS20 is a double-ended male conical spacer for compatible 290 mm square truss connection points. Compatibility with other components requires matching receiver spacing, conical coupler dimensions, chord dimensions, coupler-pin length, retaining hardware, and engineering data for the completed structure.

EVT290S Compatibility
Designed to integrate with compatible EVT290S sections, corners, bases, and accessories when the complete connection is physically confirmed.
F34 Compatibility
Compatible with matching F34 290 mm square dimensions and conical hardware when the interfaces and full coupler engagement match.
Connection Engagement
The 20 mm spacer changes connection depth. Confirm complete receiver engagement and suitable coupler-pin and retention hardware.
Mixed-System Confirmation
Do not assume compatibility from the 290 mm classification alone. Test-fit the complete connection on the ground before lifting.

Installation Conditions

Confirm the 20 mm Joint Before It Enters Service.

Installation requires a confirmed truss system requirement, serviceable parts, correct hardware, and a complete inspection before the connection is put into service.

01 — Confirm Requirement
Confirm the truss system calls for a 20 mm addition at the specific connection.
02 — Inspect Components
Do not use damaged, deformed, cracked, or incompatible components.
03 — Test-Fit the Full Joint
Confirm receivers, couplers, coupler-pins, and retainers achieve required engagement with the spacer installed.
04 — Secure and Inspect
Install all required hardware fully, then inspect before the structure is loaded or lifted.

Safety Limits and Review

A 20 mm Change Requires Complete Joint Confirmation.

The EVT290A-CS20 is a structural connection component. It does not 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 attach or support loads directly from the spacer connection.
Confirm full coupler engagement in both receivers after the spacer is installed.
Use suitable coupler-pins and retention hardware for the completed 20 mm connection.
Have the complete structure reviewed by a licensed professional engineer.

Variant Relationship

The Dimension Comes First. The Finish Comes Second.

Choose the spacer whose fixed length matches what the connection requires. Select a black-finish version only when the same dimensional requirement also needs a black finish.

CS10
10 mm (0.39 in), brushed aluminum.
CS10 Black
10 mm (0.39 in), matte black.
CS20 (This Product)
20 mm (0.79 in), brushed aluminum.
CS30
30 mm (1.18 in), brushed aluminum.
Do Not Substitute Two 10 mm Spacers for One 20 mm Spacer
A 20 mm requirement calls for this single-piece spacer, not two stacked 10 mm units. Do not stack spacers or combine dimensions without engineering approval for the complete connection.
Confirm Current Documentation Before Ordering or Installing
Confirm current manufacturer drawings, instructions, and required retaining hardware before ordering or installing the EVT290A-CS20. 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-CS20 Frequently Asked Questions.

What does the CS20 do?

It adds 20 mm (0.79 in) at one compatible 290 mm conical truss connection.

Why must engagement be checked?

The 20 mm collar changes connection depth, so the complete joint must retain required coupler, receiver, coupler-pin, and retainer engagement.

Are coupler-pins included?

No. The spacer is supplied without coupler-pins or r-clips — these must be sourced separately.

Can I use two 10 mm spacers instead of one 20 mm spacer?

No. A 20 mm requirement calls for this single-piece spacer. Do not stack spacers or combine dimensions without engineering approval for the complete connection.

Need to Close a 20 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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