Set of 14 Trailer Leaf Spring Shackle Bolts with Locknuts – 9/16" x 3" (PN: 9163B / SB-3)
This hardware set includes fourteen (14) 9/16" diameter x 3" long shackle bolts with matching locking nuts, designed for mounting double-eye leaf springs to front and rear hangers on tandem or triple axle trailers. Made from durable zinc-plated steel for corrosion resistance, these bolts ensure a secure, long-lasting suspension connection.
| Part Number | 9163B |
| Manufacturer Part Number | SB-3 |
| Bolt Diameter | 9/16 inch |
| Bolt Length | 3 inches (overall) |
| Thread Pitch | 9/16"-18 fine thread |
| Included Hardware | 14 × locknuts (self-locking, zinc-plated) |
| Material | Heat-treated steel, zinc-plated |
| Application | For 1-3/4" wide double-eye leaf springs and standard trailer suspension hangers |
Features
- Complete set of 14 shackle bolts and locknuts for dual or triple axle trailer suspension
- Fine-thread design prevents loosening under vibration and heavy load
- Zinc-plated finish resists corrosion for longer service life
- Standard 9/16" × 3" size fits most tandem axle hanger and shackle configurations
- Ideal for replacing worn or rusted suspension hardware during rebuild or upgrade
Includes fourteen (14) bolts and fourteen (14) locknuts. Fits standard 9/16" hanger and shackle configurations used on Dexter, Lippert, and Rockwell trailer suspensions.