The FA-6-92Z flanged lock nut is a high-strength, zinc-plated fastener designed for use in trailer suspension systems, particularly with shackle bolts and wet bolt kits.

Featuring a 7/16"-20 fine thread, this nut is commonly used on 9/16" shoulder bolts with reduced 7/16" threads, making it a standard component in many trailer leaf spring setups. The integrated flange eliminates the need for a separate washer while providing even load distribution and secure clamping.

Built for durability and vibration resistance, this lock nut is ideal for maintaining proper suspension alignment and long-term reliability.

⚙️ Specifications

• Part Number: FA-6-92Z
• Thread Size: 7/16"-20 (fine thread)
• Type: Flanged lock nut
• Material: Steel
• Finish: Zinc plated (corrosion resistant)
• Application: Trailer suspension / shackle bolts
• Grade: Comparable to industry Grade G / Grade 5

🔧 Applications

Commonly used for:

• Trailer leaf spring shackles
• Equalizer connections
• Wet bolt kits (greaseable bolts)
• Suspension rebuilds

This nut is widely used with greaseable suspension hardware and is standard on many trailer setups.

🔁 Cross Reference (OEM & Aftermarket)

Equivalent or interchangeable with:

• Dexter: 006-092-01
• Lippert: 122103
• TruRyde: FA-6-92Z
• Generic: 7/16"-20 flanged lock nut

👉 Common across multiple trailer suspension systems and manufacturers

💪 Key Features

• ✅ Integrated flange – no washer required
• ✅ Fine thread for secure fit on suspension bolts
• ✅ Zinc coating resists corrosion
• ✅ Designed for high-vibration environments
• ✅ Ideal for wet bolt and shackle applications

🚚 Fitment & Compatibility

Fits:

• Standard trailer suspension systems
• 9/16" shackle bolts with 7/16"-20 threads
• Wet bolt kits (greaseable bolts)

Compatible with:

• Dexter axles
• Lippert (LCI) suspension systems
• Most aftermarket trailer suspension kits

📦 What’s Included

• (1) Flanged lock nut (sold individually unless specified)

🛠️ Installation Notes

• Torque to manufacturer specifications
• Do not reuse excessively worn lock nuts
• Recommended to replace when servicing suspension
• Works best with new bushings and bolts

🔍 SEO Meta Data

Meta Title:
FA-6-92Z Flanged Lock Nut 7/16-20 – Trailer Shackle & Wet Bolt Nut

Meta Description:
Buy FA-6-92Z flanged lock nut 7/16"-20. Zinc plated trailer suspension nut for shackle bolts and wet bolt kits. Fits Dexter & Lippert systems.

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