Automotive exhaust fastening parts designed to secure manifold studs with correct M8 engagement, PA Products Exhaust Manifold Nuts. Ideal for classic BMW owners wanting reliable, straightforward replacements while restoring an E30. Are they the right match for a restoration project and worth keeping in the garage?
⚡ At a Glance
- • Thread Accuracy: M8 sizing matches exhaust stud threads for correct engagement
- • Best for: Owners restoring or maintaining BMW 3 Series E30 exhaust systems
- • Not ideal for: Non-M8 applications or vehicles other than BMW E30
M8 hex self-locking exhaust nuts made of carbon steel with copper plating. Supplied as a pack of 12 and referenced by OEM number A1201420072.
Secure installation – with M8 self-locking hex design
Self-locking hex nuts include a locking feature that resists loosening under vibration and thermal cycles. M8 sizing matches the thread diameter specified for the listed exhaust studs.
Reduced risk of fasteners vibrating loose during use, helping keep manifold joints tight. Suitable for repeated assembly and basic workshop use.
Corrosion protection – thanks to copper-plated carbon steel
Carbon steel core provides strength while a copper plating layer offers a protective finish. The plating limits direct steel exposure to corrosive exhaust environments.
Improved resistance to rust and high-temperature exposure compared with bare steel nuts. Longer usable life in exhaust applications extends maintenance intervals.
Ready for refit jobs – with a 12-piece pack of M8 nuts
Pack includes twelve M8 hex, self-locking nuts, providing multiple fasteners for an exhaust manifold job. OEM reference A1201420072 is supplied for matching replacement parts.
Convenient supply for replacing several studs at once without sourcing individual nuts. OEM reference simplifies part matching for classic BMW maintenance.
✨ The 4 Key Reasons for PA Products Exhaust Manifold Nuts
- M8 Thread Size – Ensures correct fit on E30 exhaust studs every time
- Copper-Plated Carbon Steel – Resists corrosion and handles high exhaust temperatures reliably
- Pack of 12 Nuts – Provides enough fasteners for a full manifold refit or multiple repairs
- OEM Reference A1201420072 – Makes matching parts straightforward for classic BMW maintenance
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Fitment: BMW 3 Series E30
- Nuts Size: M8
- Material: Carbon steel
- Finish: Copper plated
❓ Frequently Asked Questions
Q: Are these compatible with a BMW E30?
A: Compatibility is confirmed for BMW 3 Series E30 according to the product description.
Q: What are the nuts made from?
A: The nuts have a carbon steel core and are plated with copper for a protective finish.
Q: How many nuts are included and are they well packaged?
A: The pack contains 12 M8 self-locking hex nuts, and user feedback notes they arrive well packaged and show reliable build quality.
🏆 Our Verdict
Suited for owners and mechanics working on BMW E30 exhaust manifolds who need M8 replacement nuts. The combination of self-locking hex design, copper-plated carbon steel construction and an OEM reference makes matching and fitting straightforward. Supplied as a 12-piece pack, the set represents a practical, long-term maintenance purchase for classic BMW upkeep.
