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Factory-Style Ball Seat Wheel Bolts Built for Mercedes-Benz
The H&R 15255907 SET is engineered specifically for Mercedes-Benz vehicles that use a removable ball seat (R14) wheel bolt design. Machined with an M15 x 1.25 thread and a 59mm shaft length, this set of 10 bolts matches the factory ball seat geometry for a secure, self-centering fit against Mercedes wheels. The 19mm hex head works with the same tools used on factory Mercedes wheel hardware, and the removable ball design allows the bolts to be paired with H&R Trak+ wheel spacers when extra clearance is needed. This is a direct replacement solution for worn or damaged factory bolts on Mercedes-Benz vehicles.
Key Features
- M15 x 1.25 thread size matching Mercedes-Benz factory wheel bolt specification
- 59mm shaft length for full thread engagement on factory and aftermarket wheels
- Removable ball seat (R14) design matching factory Mercedes-Benz geometry
- 19mm hex head for use with standard Mercedes-Benz service tools
- Sold as a complete set of 10 bolts
Specifications
| Detail | Value |
|---|---|
| MPN | 15255907 SET |
| Thread Size | M15 x 1.25 |
| Shaft Length | 59mm |
| Seat Type | Removable Ball (R14) |
| Hex/Head Size | 19mm |
| Quantity | Set of 10 |
| Vehicle Application | Mercedes-Benz (R14 ball seat wheel bolt pattern) |
| Material | Hardened Steel |
What's Included
- 10x H&R 15x1.25 59mm Mercedes removable ball wheel bolts
About H&R
H&R Special Springs has manufactured performance suspension and wheel fitment components since 1979, earning a reputation for exacting tolerances on everything from lowering springs to wheel spacers, adaptors, and bolts. Every H&R wheel bolt is engineered to the same standard used across its Trak+ wheel spacer line, giving Mercedes-Benz owners a trusted, direct-fit fastener solution.
Related Parts
- H&R Trak+ 5mm DRS Wheel Adaptor Bolt 4/100 Center Bore 56.1 Stud Thread 12x1.5
- H&R Trak+ 5mm DRS Wheel Adaptor Bolt 5/100 Center Bore 54.1 Stud Thread 12x1.5
FAQ
What is the 15255907 SET?The 15255907 SET is an H&R wheel bolt kit with an M15 x 1.25 thread, 59mm shaft length, and a removable ball (R14) seat matching Mercedes-Benz factory wheel bolt geometry, sold as a set of 10.
What vehicles use this ball seat bolt pattern?This removable ball (R14) seat pattern matches Mercedes-Benz factory wheel bolt applications using an M15 x 1.25 thread.
What wrench size do I need to install these bolts?A 19mm hex socket or lug wrench is required to install and torque these bolts.
How many bolts come in this set?This listing includes a complete set of 10 bolts.
Can these bolts be used with wheel spacers?Yes, the removable ball design allows these bolts to be paired with H&R Trak+ wheel spacers when additional clearance is needed.
What thread size do these bolts use?These bolts use an M15 x 1.25 thread size matching Mercedes-Benz factory specification.
What material are these wheel bolts made from?They are manufactured from hardened steel for consistent clamping strength over repeated use.
What is the shaft length of these bolts?These bolts have a 59mm shaft length for full thread engagement.
Install Instructions
- Loosen and remove the existing wheel bolts in a star pattern
- Confirm thread size, shaft length, and seat type match your Mercedes-Benz wheel and hub before installing
- Thread each new H&R wheel bolt by hand until snug
- Using a 19mm socket, tighten each bolt in a star pattern to the vehicle manufacturer's specified torque
- Re-torque all bolts after driving approximately 50-100 miles
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