Product Description
The 586005/A Flanged Nut is an OEM-grade fastener designed for high-stress areas such as cylinder head studs, engine mounting points, and chassis brackets. Manufactured to Grade 8.8 standards, it provides the necessary strength to maintain torque settings under extreme thermal and mechanical loads.
The integrated flange is particularly useful in motorcycle applications because it eliminates the need for separate washers, which can often be misplaced during service. This design also provides a larger contact surface, reducing the risk of damage to the parts being secured (like aluminum engine cases or painted frame brackets).
Key Features:
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Grade 8.8 Tensile Strength: Built to withstand high clamping forces without stripping or deforming.
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Integrated Flange: Acts as a washer to distribute load and prevent loosening from road vibrations.
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Precision Threading: M8 x 1.25mm standard pitch ensures a perfect fit on factory studs and bolts.
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Corrosion Resistant: Typically features a zinc-plated or specialized coating to prevent rust and seizing over time.
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Multi-Model Compatibility: A “universal” fastener used in various critical locations throughout the Royal Enfield range.
Technical Specifications:
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Part Number: 586005/A (Also interchanges with 145867/A in some catalogs)
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Size: M8
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Thread Pitch: 1.25mm
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Strength Grade: 8.8
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Head Type: Hexagonal with Flange
Vehicle Compatibility:
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Royal Enfield Classic 350 / 500 (UCE & Reborn)
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Royal Enfield Bullet 350 / 500 (Standard, ES, and Trials)
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Royal Enfield Himalayan 411 / Scram 411
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Royal Enfield Interceptor 650 / Continental GT 650
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Royal Enfield Meteor 350 / Hunter 350











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