Genuine BMW OEM Self-Locking Collar Nut M8 Grade 8 ZNS3 | OEM 31316769731

Ensure secure, vibration-resistant assembly across a wide range of BMW models with the Genuine BMW OEM Self-Locking Collar Nut M8 Grade 8 ZNS3 – Part 31316769731. The nylon or deformed-thread locking feature prevents loosening under vibration and dynamic loads, while the integrated collar provides an increased bearing surface – making this the ideal OEM replacement for chassis, body and drivetrain applications. Features: Genuine BMW OEM part – guaranteed fitment and quality M8 thread, grade 8 tensile specification Self-locking design resists loosening under vibration ZNS3 zinc-nickel coating for superior corrosion resistance Collar provides increased load-bearing surface Broad compatibility across BMW, MINI and Rolls-Royce models Why Self-Locking Nuts Matter In automotive applications, standard nuts can gradually loosen under engine and road vibration. A self-locking collar nut maintains the designed clamping load throughout the service life of the fastened assembly, contributing to structural integrity and safety. Always replace self-locking nuts when re-assembling critical components – they are single-use by design. Compatibility – BMW, MINI & Rolls-Royce Models 1 Series: E81, E82, E87, E87 LCI, E88 3 Series: E36, E46, E90, E90 LCI, E91, E91 LCI, E92, E92 LCI, E93, E93 LCI 5 Series: E34, E39, E60, E60 LCI, E61, E61 LCI 6 Series: E63, E63 LCI, E64, E64 LCI 7 Series: E32, E38, E65, E66, E67, F01, F02 8 Series: E31, G14 Convertible, M8 F91 Convertible X1: E84 | X3: E83, E83 LCI | X5: E53 Z4: E85, E86, E89 | Z8: E52 MINI: R50, R53, R56, R56 LCI, R55 Clubman, R55 LCI, R52 Cabrio, R57, R57 LCI, R58 Coupé, R59 Roadster, R60 Countryman, R61 Paceman Rolls-Royce: Phantom RR1, Phantom Drophead, Phantom Coupé (all series) If you are unsure of compatibility, please confirm with your VIN or contact our team. Why Choose Genuine BMW? Exact OEM thread specification and self-locking characteristics ZNS3 zinc-nickel coating for long-term corrosion resistance Grade 8 tensile strength – built to BMW assembly tolerances Single-use locking element ensures correct clamping on reassembly Why Buy from R44 Performance? R44 Performance is a trusted UK supplier of genuine BMW OEM parts and performance upgrades, serving customers across the UK, Europe, North America and worldwide. Genuine BMW OEM parts – 100% authentic BMW-specific expertise Fast UK dispatch and international delivery Dedicated customer support team Restore factory-standard fastening security with the Genuine BMW Self-Locking Collar Nut M8 ZNS3 – OEM 31316769731, engineered to BMW's exact specification.