8-Pack - Trailer Shackle Bolts - 9/16" x 3" with Locknuts
Eight 9/16" diameter spring-retainer shackle bolts with matching locknuts for common trailer leaf spring hanger and equalizer suspension applications.
Overview
This 8-pack of 9/16" x 3" shackle bolts is used for common trailer suspension service where double-eye leaf springs mount into front or rear hangers, or where the spring connects to an equalizer assembly. Each bolt is paired with a locknut to help secure the suspension connection once installed.
R&P Service Insight
Shackle bolts are small parts, but they are critical to proper suspension movement and spring retention.
- Verify Diameter: Match the 9/16" bolt diameter to your hanger, spring eye, and equalizer holes.
- Check Length: Confirm the 3" length is correct for your suspension stack-up.
- Inspect Wear: Replace worn bolts, elongated hanger holes, damaged bushings, or loose hardware as needed.
R&P Knowledge Hub
Compatibility: Commonly used with 1.75" wide double-eye trailer leaf springs.
Vehicle / System Fit: For trailer leaf spring suspension hanger and equalizer service.
Installation Notes: Install with the included locknuts and verify that all suspension components move correctly after assembly.
Performance Insight: Proper shackle hardware helps maintain suspension alignment, spring retention, and safe trailer operation.
Brand & Fitment Note
Selling Brand: R&P Carriages / Need A Trailer Part
Application Reference: Trailer leaf spring suspension hardware for common hanger and equalizer locations.
What This Means: This listing includes eight 9/16" x 3" shackle bolts with matching locknuts for compatible trailer suspension applications.
Before Ordering: Compare your current bolt diameter, length, spring width, hanger setup, and equalizer style before purchase.
R&P Repair Insight
When replacing shackle bolts, inspect the complete suspension connection instead of replacing the bolt alone. Worn bushings, loose locknuts, wallowed hanger holes, or damaged equalizer parts can continue to cause movement even after new hardware is installed.
- Spring Eye: Check for worn bushings or excessive side movement.
- Hanger / Equalizer: Inspect for elongated holes, cracks, or uneven wear.
- Final Assembly: Confirm hardware is secure and the suspension articulates normally before towing.
Features
Eight-Piece Hardware Pack
Includes eight 9/16" x 3" shackle bolts with locknuts for multi-point suspension service.
Common Trailer Suspension Size
Designed for common 9/16" suspension hardware applications on many trailer leaf spring setups.
Hanger or Equalizer Use
Used where a double-eye spring attaches to a front or rear hanger, or to an equalizer when equipped.
Fits Common Spring Widths
Commonly used with 1.75" wide trailer leaf springs on many 7,000 lb and smaller axle applications.
Specifications
| Specification | Detail |
|---|---|
| Part Number | 9163B-KITx8 |
| Brand | R&P Carriages / Need A Trailer Part |
| Product Type | Trailer suspension shackle bolt kit |
| Application | Trailer leaf spring hangers and equalizers |
| Material / Finish | Steel hardware; finish not specified in supplied listing |
| Key Measurement | 9/16" diameter x 3" length |
| Fitment | Common 1.75" wide double-eye trailer leaf spring suspension applications |
| Quantity Included | 8 bolts with 8 locknuts |
| Listing SKU | 9163B-KITx8 |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | Trailer leaf spring suspension |
| Primary Fit | Double-eye spring front or rear hanger locations |
| Secondary Fit | Equalizer connections on equipped tandem-axle suspensions |
| Notes | Commonly used with 1.75" wide springs and many 7,000 lb and smaller axle applications. Always verify your measurements before ordering. |
Detailed Measurements
| Key Dimension | Measurement |
|---|---|
| Bolt Diameter | 9/16" |
| Bolt Length | 3" |
| Common Spring Width | 1.75" wide double-eye springs |
| Quantity | 8 bolt and locknut sets |
Included Components
| Quantity | Item |
|---|---|
| 8 | 9/16" x 3" trailer shackle bolts |
| 8 | Matching locknuts |
| Not Included | Springs, hangers, equalizers, shackles, bushings, and other suspension components unless shown or stated separately |
