Nord-Lock 3/8 X Series Washer Delta | AIMS Industrial

The Nord-Lock X Series Standard Washer UNC Delta Protekt combines wedge-locking and an integral spring effect, providing the highest security against both vibration-induced loosening and preload loss from slackening — the optimum choice for UNC-threaded joints exposed to vibration, thermal cycling, settlement and compliant joint surfaces.

Wind Energy and Renewables

• Tower and nacelle bolted flange connections subject to vibration and thermal cycling
• Renewable energy structures with composite, coated and multi-layer clamping stacks prone to slackening
• Solar mounting hardware on structures subject to vibration and differential thermal movement

Rail and Transport

• Rolling stock and rail infrastructure using UNC fasteners with both vibration and slackening risk
• Suspension, bogie and undercarriage connections requiring maximum security against spontaneous loosening
• Vehicle assembly with plastic composites, coatings or gaskets in the joint stack

Heavy Industrial and Mining

• Critical drive train and gearbox fastening where dynamic vibration and slackening settlement both apply
• Mining equipment joints with multiple clamped parts or soft materials promoting preload loss
• High-value production machinery where a fastener loosening event would cause downtime or injury

Chemical and Industrial Process Plant

• Bolted connections with coatings, gaskets or plastic cladding elements in the joint stack
• Pump and compressor fastening on long studs prone to relaxation
• Pipe flange bolting at UNC sizes requiring vibration resistance and preload compensation

Offshore and Marine — Critical Joints

• Safety-critical offshore connections where both vibration and slackening must be addressed
• Marine propulsion and steering component fastening requiring maximum locking assurance