OVERVIEW
Factory fastener for the R8 front brake caliper
Genuine VW/Audi WHT-001-330-A secures the front brake caliper at the designated mounting position. Its thread, shoulder and seating geometry must match the original brake and wheel carrier arrangement.
The internal hex drive provides tool access for caliper service. This is structural caliper mounting hardware; it is separate from the pad retaining pins, anti-rattle spring and bleeder screws.
Technical details
- Complete factory number: WHT-001-330-A.
- Factory specification: M12 × 1.5 × 77 × 30 factory caliper mounting screw.
- Design: partially threaded bolt with internal hex drive and extended unthreaded shank.
- Quantity supplied: one individual caliper mounting bolt; additional bolts, caliper and pad hardware are separate.
Retain the complete WHT-001-330-A suffix when identifying the fastener. The listed dimensions identify this mounting screw and are not a substitute for checking the brake equipment and original installation position.
Common reasons to replace
- The repair procedure calls for replacement of removed mounting hardware.
- The original internal hex drive is rounded or damaged.
- Threads, seating surfaces or the bolt shank show damage or significant corrosion.
Inspect the carrier threads and caliper mounting faces during service. A damaged mounting bore or stripped thread requires proper repair; fitting a new bolt alone does not correct a defective mounting point.
Vehicle fitment
Match the front brake configuration and original part number in the table. Brake equipment matters even within the same R8 model year.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi R8 | 2014–2015 | 4.2L V8 / 5.2L V10 gasoline | Coupe / Spyder; Base / Plus where equipped | Front caliper mounting position using WHT-001-330-A; factory ceramic and conventional brake applications listed for this bolt. |
| Audi R8 | 2023 | 5.2L V10 gasoline | Performance RWD | Front brake caliper, without ceramic brakes; match original bolt and brake equipment. |
| Audi R8 | 2018 | 5.2L V10 gasoline; DKAA | quattro; matching original front brake assembly | Front caliper mounting bolt; match original brake equipment and complete fastener number. |
| Audi R8 | 2020 | 5.2L V10 gasoline | Performance; matching front brakes | Front caliper mount without ceramic brakes; confirm original brake equipment and full bolt number. |
| Audi R8 | 2021 | 5.2L V10 gasoline | Base; matching front brakes | Front caliper mount without ceramic brakes; confirm original brake equipment and full bolt number. |
Installation guidance
Support the vehicle and caliper correctly and follow the factory brake repair procedure. Use the specified tool engagement, thread preparation and tightening sequence, including any angle stage or mandatory fastener replacement specified for the exact application.
Check caliper seating, hose routing and wheel clearance, then complete the required brake system and roadworthiness checks before returning the vehicle to service.
Ordering information
One individual Genuine VW/Audi WHT-001-330-A bolt is supplied. Verify the required quantity for the repair and order other mounting or pad retention hardware separately.