Automotive fasteners designed for secure, long-lasting manifold connections in exhaust systems. The Nicear Car Exhaust Manifold Nuts come as a 12-piece M8 set, giving E30 owners a simple way to replace worn fasteners. Are M8 self-locking hex nuts the right choice for your exhaust repairs?
⚡ At a Glance
- • Durability: High-hardness steel construction with good corrosion resistance, resists deformation after long-term use
- • Best for: Owners and mechanics replacing or repairing exhaust manifold connections on BMW E30 vehicles
- • Not ideal for: Applications that require non-M8 threads or specialised fasteners
M8 hex nuts supplied as a 12-piece set for manifold fastenings. Approximate size 17.4 x 9.2mm, recommended for E30 exhaust pipe use.
Secure, vibration-resistant fastening – With M8 self-locking hex nuts
M8 hex head design matches standard M8 studs and allows use of spanners or sockets. Self-locking functionality reduces the likelihood of loosening under vibration during driving.
Maintains torque at manifold joints, reducing the need for frequent retightening and follow-up checks.
Long-term corrosion resistance – Thanks to high-hardness steel construction
Steel composition offers good corrosion resistance and elevated hardness, properties that help resist wear and deformation over time. The materials are described as durable for prolonged use.
Suitable for exhaust environments where fasteners face heat and exposure, supporting longer service life.
Ready supply for repairs – With a 12-piece pack and compact size
The package contains 12 exhaust manifold hex nuts, each approximately 17.4 x 9.2mm, making them easy to store and transport. The compact dimensions suit typical toolkit space.
Provides enough replacements for several jobs or to keep as spares, saving time sourcing individual nuts later.
✨ The 4 Key Reasons for Nicear Car Exhaust Manifold Nuts
- Self-locking M8 hex - Reduces risk of loosening during regular driving and vibration
- High-hardness steel - Resists deformation and corrosion for longer service life
- 12-piece kit - Supplies spares for multiple manifold bolts or future maintenance
- Compact 17.4 x 9.2mm size - Easy to carry and store in a toolbox or glovebox
📋 Technical Details at a Glance
- Category: Automotive exhaust fasteners
- Brand: Nicear
- Material: Steel with good corrosion resistance and high hardness
- Thread Size: M8 (self-locking)
- Head Type: Hex head
❓ Frequently Asked Questions
Q: Are these nuts compatible with my car?
A: Designed for use with E30 automobile exhaust pipe and M8 threaded studs; confirm your vehicle uses M8 threads before fitting.
Q: What material are the nuts made from?
A: Made of steel with good corrosion resistance and high hardness, specified to resist deformation after long-term use.
Q: How many nuts are included and are they easy to carry?
A: The package includes 12 exhaust manifold hex nuts, each about 17.4 x 9.2mm, making them compact and easy to store or transport.
🏆 Our Verdict
Suited to E30 owners and professional mechanics who need reliable manifold fasteners. The combination of M8 self-locking design, high-hardness steel and a 12-piece supply makes for practical, durable replacements. Offers strong long-term value through durable construction and spare quantity for future maintenance.
