Royal Enfield Himalayan 450 M6 × 25 Left-Hand Thread Hex Flange Bolt – H6906022/B

Genuine Royal Enfield Himalayan 450 fastener, part number H6906022/B. Royal Enfield identifies this item as a hex-head flange bolt measuring M6 × 25 mm with a left-hand thread and property class 8.8. Sold individually as one bolt.

What It Is

This is a model-specific Royal Enfield HHF bolt for the Himalayan 450. “HHF” refers to a hex-head flange fastener. The integral flange spreads the clamping load, while the left-hand thread means the tightening and loosening direction differs from a conventional right-hand-thread bolt.

What It Is Not

This is not a balancer shaft assembly, ordinary hardware-store M6 bolt, right-hand-thread bolt, complete fitting kit, washer, nut or bearing. It must not be confused with unsuffixed H6906022, which is a different Royal Enfield component.

Key Highlights

• Genuine Royal Enfield spare part
• Exact part number: H6906022/B
• Confirmed Royal Enfield application: Himalayan 450
• M6 × 25 mm specification
• Left-hand thread
• Hex-head flange design
• Property class 8.8
• Sold individually: 1 bolt

Verified Specifications

• Manufacturer: Royal Enfield
• Manufacturer part number: H6906022/B
• Official description: Bolt, HHF, M6 × 25 – LH, 8.8, L
• Thread size: M6
• Length: 25 mm
• Thread direction: Left-hand
• Strength/property class: 8.8
• Head type: Hex-head flange
• Quantity: 1 piece

Confirmed Motorcycle Fitment

• Royal Enfield Himalayan 450

The official Royal Enfield spares page identifies Himalayan 450 compatibility. Fitment to another motorcycle is not claimed merely because it uses an M6 fastener.

Check Before Ordering

• Confirm the required part number includes the suffix: H6906022/B.
• Confirm the motorcycle is a Royal Enfield Himalayan 450.
• Confirm the parts diagram calls for an M6 × 25 left-hand-thread HHF bolt at the required position.
• Compare the removed bolt’s thread direction, dimensions and head/flange design.
• If the original bolt is missing, verify by VIN and the latest Royal Enfield parts catalogue.

Not Confirmed / Do Not Assume Fitment

• Royal Enfield Guerrilla 450
• Royal Enfield Himalayan 411
• Royal Enfield Scram 411 or Scram 440
• Royal Enfield J-Series 350 motorcycles
• Royal Enfield 650 models
• Any application requiring a normal right-hand-thread M6 × 25 bolt

Critical Part-Number Difference

H6906022/B is the M6 × 25 left-hand-thread 8.8 hex-flange bolt shown here. H6906022 without the suffix is a different part number and must not be ordered as a substitute. Match every letter and suffix.

Related Comparison

Many M6 × 25 bolts look similar, but thread direction, pitch, material grade, flange geometry and application can differ. A conventional clockwise-tightening bolt is not a safe substitute for a left-hand-thread OEM fastener.

Purpose

This bolt secures the specific Himalayan 450 assembly position assigned to H6906022/B in the Royal Enfield parts catalogue. The exact installation location and torque must be taken from the motorcycle-specific service information or confirmed by an authorised technician.

Box Contents

• 1 × Royal Enfield H6906022/B bolt

No washer, nut, shaft, bearing, tool or additional fastener is included unless physically supplied in the sealed manufacturer package.

Installation

This is a left-hand-thread fastener. Do not force it using the normal tightening direction. Confirm the correct direction, installation position, locking method and torque in current Royal Enfield service information. Use an accurate torque wrench and replace any damaged mating component. Professional installation is recommended.

Care and Safety

• Keep the bolt clean and protected from thread damage before installation.
• Never chase or modify the thread to make it fit.
• Do not substitute an unknown-grade bolt.
• Stop immediately if resistance suggests cross-threading.
• Use only the manufacturer-specified torque and locking procedure.

Return Prevention — Verify Before Purchase

Confirm H6906022/B, Himalayan 450 application, M6 × 25 dimensions and left-hand thread before ordering. A correctly supplied item is not returnable. Replacement is considered only for a wrong or transit-damaged item reported within 24 hours of delivery with a complete, clear and uninterrupted unboxing video. Installed, trial-fitted, threaded, marked, modified, used or incomplete parts are not returnable. Orders cannot be cancelled after processing.

Why Buy from Under The Hood

• Exact suffix and thread-direction identification
• Confirmed motorcycle name shown clearly
• Buyer-focused checks that reduce wrong fastener orders
• Careful dispatch verification for genuine Royal Enfield spares

Buyer Search Terms

Royal Enfield H6906022/B, Himalayan 450 M6 bolt, Himalayan 450 left hand thread bolt, M6 × 25 LH bolt, Royal Enfield hex flange bolt, HHF bolt 8.8, genuine Himalayan 450 fastener, H6906022B bolt.

Frequently Asked Questions

1. What is H6906022/B?

It is a genuine Royal Enfield M6 × 25 left-hand-thread hex-head flange bolt with property class 8.8.

2. Which motorcycle is officially confirmed?

The Royal Enfield spares page confirms the Himalayan 450.

3. Is it sold individually?

Yes. The sale quantity is one bolt.

4. What does M6 × 25 mean?

M6 identifies the nominal thread diameter, and 25 mm identifies the stated bolt length.

5. Is this a left-hand-thread bolt?

Yes. Royal Enfield’s description specifically states LH.

6. Does it tighten like a normal bolt?

No. Left-hand threads use the opposite rotational direction; confirm the service procedure before fitting.

7. What does HHF mean?

It identifies the bolt as a hex-head flange type.

8. What is the bolt grade?

The listed property class is 8.8.

9. Is this the Himalayan 450 balancer shaft?

No. This listing is only for the H6906022/B bolt.

10. Is H6906022 without /B the same part?

No. The suffix is essential; the unsuffixed code identifies a different component.

11. Does it fit the Himalayan 411?

Fitment is not confirmed. Do not order it for the Himalayan 411 based on this listing.

12. Does it fit the Guerrilla 450?

Not confirmed by the supplied Royal Enfield product page. Verify by VIN and catalogue before ordering.

13. Does it fit the Scram 411?

No Scram 411 fitment is claimed.

14. Can I use a normal M6 × 25 bolt?

No. A normal right-hand-thread or unknown-grade bolt is not an equivalent substitute.

15. Is a washer included?

No washer is promised; the package is listed as one bolt.

16. Is a nut included?

No. A nut is not included unless physically present in the sealed manufacturer package.

17. What torque should be used?

Use only the torque stated in current Himalayan 450 service information for the exact installation position.

18. Can the bolt be trial-fitted and returned?

No. A threaded or trial-fitted fastener is treated as installed and is not returnable.

19. How should I verify it before ordering?

Match H6906022/B, Himalayan 450, M6 × 25, LH thread and the exact parts-diagram position.

20. What is the biggest ordering risk?

Missing the /B suffix or replacing this left-hand-thread bolt with a conventional right-hand-thread fastener.