EVT290S Truss Systems Knowledge Center
EVT290A-CPNSS Stainless Steel Coupler-Pin and Locknut Set.
10-Pack Threaded Hardware for Long-Term 290 mm Truss Installations.
The EVT290A-CPNSS is a threaded coupler-pin and nylon-insert locknut set for compatible 290 mm conical truss connections. Each pack includes 10 304 stainless steel M8 threaded coupler-pins and 10 matching locknuts. The locknut replaces the standard r-clip retention method for installations where the completed truss structure is intended to remain assembled long-term. Use the set only with verified compatible truss receivers, couplers, pin interfaces, and an approved finished structure.
Product Facts
Product Overview
A Threaded Locking Alternative to Standard R-Clip Retention.
The EVT290A-CPNSS uses a threaded coupler-pin and nylon-insert locknut instead of a standard coupler-pin and r-clip. The M8 threaded end receives its matching locknut after the pin is installed through the verified connection interface. The nylon insert is intended to help resist loosening in long-term installations. The completed truss structure—not the threaded hardware alone—determines all support, loading, inspection, and engineering requirements.
What the Hardware Supports
Threaded Connections for Long-Term Truss Installations.
The EVT290A-CPNSS is intended for compatible permanent or semi-permanent truss installations where threaded locknut retention is selected instead of standard quick-release r-clip retention. Review the verified connection interface, fastener condition, torque requirements, environment, installed loads, and complete support plan for the actual finished structure.
Included Components
10 Sets of Threaded Locking Hardware in Every Pack.
The EVT290A-CPNSS includes 10 M8 threaded coupler-pins and 10 nylon-insert locknuts: enough hardware for 10 individual coupler-pin positions. Standard r-clips are not part of this threaded retention system. Confirm current package contents, thread condition, connection requirements, and torque requirements before installation.
Do not combine a threaded locknut installation with assumptions from a standard r-clip connection. Confirm the specified pin, locknut, coupler, receiver, torque, and complete approved structure before use.
Technical Reference
EVT290A-CPNSS Specifications.
The following values identify the hardware material, thread specification, recommended torque, pack contents, weight, and listed system fit. Confirm current manufacturer drawings, instructions, package contents, component condition, and project requirements before ordering, assembling, lifting, or loading a complete truss structure.
Identification
Product Information
Construction
Materials and Finish
Hardware
Thread and Torque
System Fit
Compatibility
System Compatibility
Use CPNSS Hardware in Compatible 290 mm Conical Truss Systems.
The EVT290A-CPNSS is intended for compatible EVT290I I-Beam, EVT290T triangular, EVT290S square, F34-format, and verified 290 mm conical truss systems when pin diameter, taper, coupler details, receiver dimensions, threaded locknut fit, component condition, and applicable documentation are verified. Physical fit or nominal 290 mm size alone does not establish structural equivalence for the completed truss structure.
Confirm pin diameter, taper, coupler interface, receiver dimensions, threaded locknut fit, and hole alignment before using hardware with another truss system. Do not force a pin into a connection that does not align naturally.
Assembly Overview
Align, Pin, Thread, and Torque Every Connection Before Use.
Install threaded coupler-pins only with compatible components, current manufacturer instructions, and the approved truss plan. If the pin hole does not align naturally, stop and inspect the connector, coupler, receivers, component orientation, and complete connection. Do not force a pin into a misaligned interface.
Safety and Engineering
Every Threaded Coupler-Pin Requires Correct Torque and Inspection.
The CPNSS set does not independently establish a load or span rating. Threaded coupler-pins and nylon-insert locknuts form part of a complete conical truss connection. Damaged, worn, incompatible, improperly torqued, or incorrectly installed hardware can compromise the completed truss structure. Evaluate all connection, support, inspection, load, and engineering requirements for the actual approved configuration.
Product Questions
EVT290A-CPNSS Questions.
How is this set different from standard coupler-pin and r-clip hardware?
The CPNSS set uses a threaded M8 coupler-pin and matching nylon-insert locknut instead of the standard r-clip retention method.
What torque should the locknut be tightened to?
Tighten each locknut to the specified recommended 10–12 Nm torque range.
Can locknuts be reused after disassembly?
Follow current manufacturer instructions and the approved installation procedure. Replace locknuts after removal where replacement is specified for the installation.
Which truss systems can the set be used with?
The set is intended for compatible EVT290I, EVT290T, EVT290S, F34-format, and verified 290 mm conical truss interfaces. Confirm the complete connection interface before use.
Planning a Long-Term Truss Installation?
Contact us for component selection, threaded connection hardware, compatible EVT290I / EVT290T / EVT290S / F34 components, connection verification, engineering coordination, and freight assistance.
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