Product Description

EVT12S-3/8IN | 0.375-Inch Aluminum Truss Spacer Plate — 12-Inch Square End-Plate Bolt Truss

The EVT12S-3/8IN Aluminum Truss Spacer is a 3/8-inch (9.52 mm) precision plate for 12-inch square end-plate bolt truss systems — the smallest cataloged increment in the EVT12S spacer lineup and the piece that goes into the build when the total truss run is off by a fraction of an inch and every standard section in the inventory is too long to fix it. Machined from solid 6061-T6 aluminum alloy with a 12-inch × 12-inch square profile matching the end-plate geometry of standard EVT12S truss, this 5.27-pound spacer plate bolts between sections using the same nut-and-bolt end-plate connection as every other joint in the system — shipped complete with 4× Grade 8 bolts, nuts, and washers for immediate high-strength assembly. Touring riggers carry it in the road case for the venue where pick points don’t land on round numbers, LED frame builders insert it when the panel array demands a dimension that standard lengths can’t reach, exhibit constructors use it to hit exact booth footprints on convention floors, and permanent installation contractors rely on it to align overhead grids to architectural steel on the first bolt-up.

Function & Compatibility:

The EVT12S-3/8IN is a flat spacer plate — not a truss section — that sandwiches between two end-plated truss sections or between a truss section and another spacer using the standard bolted end-plate connection. The plate’s bolt-hole pattern matches the EVT12S 12-inch square truss end-plate geometry, and the Grade 8 fasteners included in the box deliver the same connection strength as the bolts at every other joint in the run. At 3/8 inch thick, this is the fine-tuning piece: it adds the smallest available precision increment to a truss layout, and it stacks with other EVT12S spacers when the total adjustment needed is larger than any single spacer but doesn’t correspond to a standard section length. Built from EN AW-6061-T6 aluminum alloy under TÜV manufacturing standards, the spacer carries the same material specification and production certification as the truss sections it connects. The brushed aluminum finish is consistent with every other silver EVT12S component — no surface variation at the spacer joint.

Key Features

• Smallest Precision Increment: A 3/8-inch (9.52 mm) spacer plate — the finest adjustment available in the EVT12S spacer lineup, purpose-built for closing fractional-inch gaps that no standard truss section can address.
• Grade 8 Hardware Included: Ships with 4× Grade 8 bolts, nuts, and washers — the same high-strength fastener grade used throughout EVT12S assemblies, ready for immediate bolt-up with no separate hardware order.
• 12-Inch Square End-Plate Profile: Matches the bolt-hole pattern and plate geometry of EVT12S and other standard 12-inch plated bolt truss systems, maintaining full structural continuity through the spacer joint.
• Stackable with Other Spacers: Combines with other EVT12S spacer thicknesses to build custom total adjustments — stack a 3/8-inch with a 4-inch, a 6-inch, or any combination to reach the exact dimension the layout requires.
• 6061-T6 Solid Aluminum Construction: Machined from EN AW-6061-T6 aluminum alloy — the same structural-grade material as every EVT12S truss section in the system.
• TÜV Manufacturing Standards: Fabricated under TÜV-certified production processes — the spacer carries the same engineering-grade certification that structural and rigging engineers require when specifying components on professional drawings.
• Professional Brushed Finish: Standard brushed aluminum surface integrates seamlessly with silver EVT12S truss — no visible finish change at the spacer connection.

Who It’s For

• Touring Lighting & Audio Riggers — Venues change every few days on tour and the rigging points are fixed to the building steel in different positions at every stop. When the total truss run between two pick points comes up 3/8 inch short of landing flush, this spacer closes that gap without shimming, over-torquing bolts to pull plates together, or accepting a connection that doesn’t sit flat. One spacer plate in the road case prevents a rigging compromise that would otherwise repeat at every venue on the routing — and when the gap at the next city is larger, it stacks with other spacers to reach whatever number the room demands.
• LED & Video Wall Frame Builders — Video wall panel arrays are dimensionally unforgiving — if the truss frame doesn’t match the total panel layout width, panels either gap visibly or bind against each other and refuse to seat. A 3/8-inch spacer lets you match the truss frame to the exact pixel-pitch panel dimensions without fabricating a custom bracket or accepting a seam line that shouldn’t be there. The frame hits the number the panel manufacturer specified, the array goes up flush, and the seams disappear.
• Convention & Trade Show Exhibit Constructors — Floor plans at convention centers are measured to the inch and enforced by show management. A booth build that doesn’t hit the exact footprint risks encroaching into a neighboring exhibitor’s space or leaving a visible gap in the structure that undermines the brand presentation. When the standard truss sections get close but not exact, the 3/8-inch spacer is the final piece that lands the build on the correct dimension — no compromise, no field modification, no conversation with show management about why the booth is a fraction of an inch over the line.
• Permanent Installation Contractors & AV Integrators — You’re building fixed overhead grids in houses of worship, corporate AV rooms, and performance venues where the truss runs have to align precisely to architectural pick points and structural steel that was placed by another trade. A 3/8-inch spacer lets you dial in exact alignment during the initial install so the grid sits level, the load distributes evenly across all connection points, and the truss doesn’t fight the building steel from day one. Getting it right at installation means the grid stays right for the life of the venue without shimming, re-bolting, or living with a visible misalignment that everyone notices but nobody budgeted to fix.
• Structural & Rigging Engineers — The EVT12S-3/8IN is a 3/8-inch (9.52 mm) solid 6061-T6 aluminum spacer plate with a 12-inch square bolt-hole pattern matching EVT12S end-plate geometry, fabricated under TÜV manufacturing standards and shipped with Grade 8 connection hardware. It appears on an engineered drawing as a standard cataloged spacer component. Adding a spacer to a truss run does NOT increase the overall load capacity of the span — allowable loads are determined by the total span length and the weakest component. Do not support loads directly from the spacer connection points. Refer to the official EVT12S Load Tables for the complete assembled span. A licensed professional engineer must review all structures.

Designed by Evolve Truss, the EVT12S-3/8IN is the smallest piece in the spacer kit and the one that gets pulled when the math is off by a fraction — 3/8 inch of precision that turns a gap into a flush connection.

⚠️ Safety & Engineering Notice

❗ Structural Warning: Adding a spacer to a truss run does NOT increase the overall load capacity of the span. The allowable load is determined by the total span length and the weakest component. Do not support loads directly from the spacer connection points.

Important Guidelines for Safe Use:

• Inspect the end plates and bolt holes for deformation or wear before every use.
• Ensure all Grade 8 bolts are properly torqued to manufacturer specifications.
• Do not mix truss components from different manufacturers unless the bolt pattern and plate dimensions have been strictly verified for compatibility.
• The purchase of this product does not authorize specific installations; a licensed professional engineer shall review all structures, lighting plots, or other aluminum truss uses.

⚠️ Compatibility Warning for Mixed-Brand Builds

Crucial Steps for Safe Assembly:

• Verify Bolt Patterns: Plated truss varies by manufacturer. Compare your existing truss plate dimensions against EVT12S specifications before purchase.
• Check Alignment: Ensure chord alignment is precise to prevent uneven loading on the bolts.
• Mixing incompatible plated truss can lead to structural failure.

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Contact us today to close the last fraction of your truss layout with the EVT12S-3/8IN Aluminum Truss Spacer.