Nord-Lock 1/4" Large OD Washer Delta | AIMS Industrial

The Nord-Lock Large O.D. Washer UNC Delta Protekt is a large-diameter wedge-locking washer pair in Delta Protekt coating, engineered to distribute clamping load and maintain preload in UNC-threaded bolted joints on soft surfaces, oversized holes and coated assemblies in heavy industrial environments.

Heavy Industry and Mining

• Large bearing face fastening on rubber-lined processing equipment using UNC bolts
• Painted and coated structural steel connections requiring load spreading alongside locking performance
• Mine site equipment where oversized holes require a large-diameter bearing washer

Rail and Infrastructure

• UNC rail and rolling stock connections with larger bearing requirements
• Bridge and heavy infrastructure connections requiring enlarged washer area with wedge-locking
• Rail track mounting hardware on concrete and composite sleepers

Industrial Construction and Fabrication

• Structural cladding and panel attachment on industrial buildings using UNC fasteners
• Crane rail and gantry fastening requiring distributed load and vibration resistance
• Equipment foundations and plinths where oversized bolt holes require load spreading

Renewable Energy

• Wind turbine tower and foundation fastening at UNC bolt sizes where larger bearing areas are specified
• Renewable energy structures using large OD washers for load distribution on structural panels