Royal Enfield Flange U Nut M8 x 1.25 586084/A OEM Hardware

Product Description

Sold as a set of 10 PCS 

Royal Enfield 586084/A Flange U Nut – M8 x 1.25 is a genuine Royal Enfield OEM hardware fastener used in catalogue-matched Royal Enfield assemblies where this exact nut is specified. It is commonly searched as a Royal Enfield flange U nut, M8 x 1.25 nut, M8 flange nut, flanged lock nut, Royal Enfield U-nut, exhaust nut or OEM hardware nut.

This is a small but important fastener. Royal Enfield uses specific nuts across exhaust, side cover, bracket, body, engine and frame-related assemblies. A wrong local nut may have incorrect thread pitch, poor plating, weak locking behaviour, wrong flange size or poor grade, which can cause loosening, thread damage, vibration noise, misalignment or repeated workshop rework.

Public Royal Enfield parts references identify 586084/A as Flange U Nut – M8 x 1.25. The Spares Company lists 586084 for models including TBTS, Bullet 350 UCE KS, Thunderbird 350, Thunderbird 500, Bullet 500 UCE and Continental GT. Bike-Parts Royal Enfield also lists 586084/A in multiple parts diagrams and price-list references as a genuine Royal Enfield fastener.

Use this part only where 586084/A or 586084 is specified in the exact parts diagram. This is not a universal replacement for every M8 nut position, not an M10 nut, not an M16 nut, not a bolt, not a washer and not a complete hardware kit.

Key Features

• Genuine Royal Enfield spare part
• Part number: 586084/A
• Part family reference: 586084
• Factory description: Flange U Nut – M8 x 1.25
• M8 x 1.25 thread specification
• Flanged U-nut / locking nut style OEM hardware
• Useful for replacing missing, rusted, rounded, worn or incorrect local nuts
• Suitable for catalogue-matched Royal Enfield assemblies where 586084/A is specified
• Better fitment confidence than random hardware-store nuts with unknown thread pitch or finish
• Best ordered by exact part number, thread size and old-part match

Buyer Search Names / Internal Search Keywords

Customers may also search this part as: Royal Enfield 586084/A, 586084, 586084A, FL U-Nut M8 x 1.25, Flange U Nut M8, M8x1.25 flange nut, Royal Enfield M8 nut, Royal Enfield lock nut, Royal Enfield exhaust nut, Thunderbird 350 nut, Bullet 350 UCE flange nut, Continental GT hardware nut.

Verified Identification

Catalogue-Matched Model References

Important Fitment Note

This listing is for one flange U nut M8 x 1.25 unless a different quantity is selected. It is not a bolt, not a washer, not a spacer, not an M10 nut, not an M16 nut, not a complete exhaust fitting kit, and not a universal nut for every Royal Enfield position.

Do not order only by approximate size. Royal Enfield uses many similar-looking nuts with different thread pitch, flange size, locking type, plating and application. Match 586084/A in the exact parts diagram before purchase.

586084/A vs Similar Royal Enfield Hardware

When Should This Nut Be Replaced?

• Original nut is missing after service or repair
• Nut threads are damaged, worn or cross-threaded
• Nut is rusted, rounded or seized
• Wrong local nut has been fitted earlier
• Assembly is loose due to incorrect hardware
• Workshop wants correct genuine Royal Enfield hardware instead of mixed local fasteners

Why This Part Matters

Small hardware decides repair quality. Using the wrong nut can damage threads, loosen under vibration or make a genuine repair look incomplete. The correct 586084/A M8 x 1.25 flange U nut helps maintain the intended Royal Enfield hardware specification where this part number is called out.

Recommended Related Parts to Check

• Matching bolt or stud used in the same assembly
• Washers or spacers used with the nut
• Thread condition on the mating bolt/stud
• Adjacent bracket or mounting point
• Other hardware disturbed during the same repair

What’s in the Box

1 x Royal Enfield Flange U Nut – M8 x 1.25 – 586084/A

Bolts, studs, washers, spacers, brackets and other hardware are included only if specifically supplied or shown separately.

Installation Notes

• Install only in the exact catalogue-specified position.
• Confirm the thread pitch and old part match before fitting.
• Do not force the nut if thread engagement is not smooth.
• Replace damaged mating bolts or studs before installation.
• Use the correct torque specification for the exact assembly.
• After installation, check the fitted part for secure mounting and vibration-free operation.

Return-Prevention Note

Order only if your motorcycle requires 586084/A Flange U Nut – M8 x 1.25. This is a part-number-specific Royal Enfield hardware fastener and should not be treated as a universal M8 nut for every application.

FAQs

What is Royal Enfield 586084/A?

586084/A is a genuine Royal Enfield Flange U Nut – M8 x 1.25.

What size is this nut?

The identified specification is M8 x 1.25.

Is this a single piece or pack of 10?

This listing should be treated as 1 piece unless your store creates a pack/quantity option. Some supplier references mention quantity per box as 10, but customer-facing sale quantity should match your actual listing quantity.

Does this fit Thunderbird 350 and Thunderbird 500?

Seller references list it for Thunderbird 350 and Thunderbird 500, but it should be used only where the specific assembly diagram calls for 586084/A.

Does this fit Bullet 350 UCE and Bullet 500 UCE?

Seller references list Bullet 350 UCE KS and Bullet 500 UCE applications. Confirm by exact parts diagram and application position before ordering.

Does this fit Continental GT?

Seller references list Continental GT applications, and 650 diagrams also show 586084/A in some exhaust-related positions. Use only where the exact diagram calls for this part.

Can I use any local M8 nut instead?

Not recommended. Thread pitch, flange design and locking style matter. Use the genuine part where 586084/A is specified.

Is this a bolt?

No. This is a nut, not a bolt.

Is this a genuine Royal Enfield part?

Yes. Public Royal Enfield parts references identify 586084/A as a genuine Royal Enfield spare part.