FOUR Trailer Leaf Spring Shackle Bolts 9/16" -18 X 3 Long with Lock Nuts
Four-piece trailer suspension hardware kit with 9/16" shackle bolts and matching lock nuts for common leaf spring hanger and equalizer service work.
Overview
This R&P Carriages trailer shackle bolt and lock nut kit includes four 9/16" shackle bolts with matching lock nuts for common trailer leaf spring suspension service. These components are typically used in spring hanger, shackle, and equalizer assemblies where the original hardware is worn, missing, or being replaced during suspension repair.
R&P Service Insight
Suspension bolts and lock nuts are small parts, but they carry real load through the spring and equalizer system. Replacing worn hardware during spring or equalizer service helps restore a tighter, more secure suspension connection.
- Common Service Item: Useful when replacing leaf springs, equalizers, shackles, or worn suspension hardware.
- Matched Hardware: Includes a lock nut for each shackle bolt.
- Fit Check Required: Always verify bolt diameter, bolt length, and suspension layout before installation.
R&P Knowledge Hub
Compatibility: Designed for trailer suspension applications that use 9/16" shackle bolts.
Vehicle / System Fit: Commonly used with double-eye leaf spring hanger, shackle, and equalizer assemblies.
Installation Notes: Verify bolt diameter, bolt length, hanger style, equalizer configuration, and bushing size before ordering or installing.
Performance Insight: Correct suspension hardware helps maintain proper spring and equalizer movement while keeping the assembly securely fastened.
Brand & Fitment Note
Selling Brand: R&P Carriages
Application Reference: This listing is for trailer suspension hardware commonly used in compatible leaf spring hanger and equalizer assemblies where the measurements match.
What This Means: This is a curated R&P Carriages hardware kit, not a guaranteed OEM-branded item unless specifically stated and verified.
Before Ordering: Confirm the bolt diameter, length, thread style, suspension position, and included components against your existing trailer hardware.
R&P Repair Insight
When trailer suspension hardware is loose, worn, or seized, it can make spring and equalizer service harder than it needs to be. Replacing bolts and lock nuts during repair is often cleaner than trying to reuse hardware that has already been under load.
- Check Diameter: This kit is listed for 9/16" bolt applications.
- Check Length: Bolt length must match your hanger, shackle, or equalizer setup.
- Check Quantity: This kit includes four bolts and four lock nuts.
Features
Complete 4-Bolt Kit
Includes four shackle bolts and four matching lock nuts for trailer suspension service.
9/16" Diameter
Built for applications requiring 9/16" trailer shackle bolts.
Leaf Spring Applications
Commonly used in front and rear spring hanger locations, shackles, and equalizer assemblies.
Service-Ready Hardware
A practical replacement kit for utility, cargo, equipment, and enclosed trailer suspension repairs.
Specifications
| Specification | Detail |
|---|---|
| Part Number | 9163B-KITX4 |
| Brand | R&P Carriages |
| Product Type | Trailer shackle bolt and lock nut kit |
| Application | Trailer leaf spring suspension hardware |
| Bolt Diameter | 9/16" |
| Included Hardware | 4 shackle bolts and 4 lock nuts |
| Material / Finish | Alloy steel, Black corrosion - resistant paint |
| Fitment | Compatible with trailer suspension setups requiring matching 9/16" shackle bolts |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | Trailer leaf spring suspension systems |
| Primary Fit | Spring hanger, shackle, and equalizer assemblies using 9/16" bolts |
| Trailer Types | Utility, cargo, equipment, and enclosed trailers where dimensions match |
| Notes | Verify bolt diameter, bolt length, bushing size, hanger style, and suspension configuration before ordering. |
Included Components
| Quantity | Item |
|---|---|
| 4 | 9/16" trailer shackle bolts |
| 4 | Matching lock nuts |
| 1 | Complete 4-bolt suspension hardware kit |
