4-Pack Brake Mounting Bolts – 8K & 9K Axles – 1/2"-20 x 1-3/4"
Brake mounting bolt kit designed for 8,000 lb and 9,000 lb trailer brake assemblies. Includes four Grade 5 bolts and matching nuts for secure brake backing plate installation.
Ideal for servicing or replacing hardware during brake installation or axle maintenance.
Features
- Complete 4-bolt mounting set
- Designed for 8K & 9K brake assemblies
- Grade 5 hardened steel construction
- Includes matching nuts
- 3/4" hex head for standard socket installation
Specifications
| Specification | Detail |
| Quantity | 4 Bolts & 4 Nuts |
| Bolt Diameter | 1/2" |
| Thread Pitch | 20 TPI (Fine Thread) |
| Bolt Length | 1-3/4" |
| Head Size | 3/4" Hex |
| Grade | Grade 5 |
| Brake Compatibility | 8,000 lb & 9,000 lb Trailer Brakes |
R&P Knowledge Hub
Brake mounting bolts secure the brake backing plate to the axle flange. Using correct bolt diameter, thread pitch, and grade rating is critical for proper brake alignment and safety.
Always inspect flange threads and replace hardware during brake service to ensure proper torque retention. Fine thread (1/2"-20) hardware is common on 8K and 9K brake applications.
IMPORTANT: Verify bolt size, thread pitch, and brake flange compatibility before installation. Torque to manufacturer specifications.
