Brakes · Rear Axle
Safety critical fastener
| System | Rear Axle |
| Subsystem | Brakes |
| Assembly | Rear Caliper |
| Fastener | Bolt |
| Thread | M12x1.5 |
| Grade | 8.8 |
| Years | 1972–1983 |
| Vehicles | 911SC, 911T/E/S |
| Confidence | Cross Referenced |
Source: Porsche 911 Workshop Manual, Sections 5 (Rear Axle) and 6 (Front and Rear Brakes); Porsche Technical Specifications (WKD 422 720, 78-81 Models, and WKD 423110, 82-83 Models)