Fasteners for harsh environments, designed to deliver secure, corrosion-resistant joints for marine and automotive work. For anyone who needs reliable fixings that reduce repeat visits, Universal Hardware M8 Serrated Flange Nuts give confidence and lower maintenance. Do they meet OEM tolerances and long-term corrosion demands?
⚡ At a Glance
- • Corrosion Resistance: A4 Stainless Steel 316 composition resists saltwater pitting and caustic attack
- • Best for: Marine repairs, exhaust fittings and outdoor fastenings where corrosion is a concern
- • Not ideal for: Applications that require a smooth, non-serrated flange finish
M8 serrated flange nuts made from A4 Stainless Steel 316 for corrosive environments. Serrated flange improves grip and reduces loosening on vibrating assemblies.
Long-term corrosion protection - thanks to A4 Stainless Steel 316
A4 grade Stainless Steel 316 contains alloying elements that help maintain a passive surface in chloride-rich conditions, reducing pitting and crevice corrosion. The material is commonly specified for marine and exhaust applications for that reason.
High resistance to saltwater and caustic environments means fewer replacements and lower maintenance for outdoor and marine fittings.
Reliable anti-loosening hold - with serrated flange design
Serrations on the flange bite into the mating surface, increasing friction and spreading load across the flange area. That mechanical engagement helps resist rotation under vibration.
Reduced loosening on vibrating assemblies makes these nuts suitable for boats, exhaust systems and engine mounts where movement is constant.
Precision fit for repairs - with well‑machined construction
User feedback notes excellent machining and an exact fit for OEM applications, indicating consistent thread profiles and seating geometry. Consistent manufacturing reduces cross-threading and fitment problems.
Straightforward replacements for vehicle and machinery maintenance, saving time during repairs and improving reliability of assemblies.
✨ The 4 Key Reasons for Universal Hardware M8 Serrated Flange Nuts
Precision machining - Ensures consistent thread fit for reliable mechanical connections every time
Serrated flange - Bites into mating surfaces, reducing fastener loosening on vibrating assemblies
Various sizes available - Lets you choose the correct M-series size for each repair job
Bulk packs for spares - Supply includes extra nuts so jobs finish without repeated orders
📋 Technical Details at a Glance
- Category: Fasteners, Flange Nuts
- Size: M8
- Material: A4 Stainless Steel 316
- Style: Serrated flange nut
- Quantity: Pack of 10
❓ Frequently Asked Questions
Q: Are these nuts suitable for marine or saltwater use?
A: Yes, they are made from A4 Stainless Steel 316, which the description identifies as highly resistant to saltwater corrosion and pitting.
Q: Will these fit OEM vehicle fastenings such as Mercedes?
A: At least one user review reports an exact fit for OEM Mercedes applications, suggesting compatibility with some manufacturer fastenings.
Q: Are other sizes available besides M8?
A: Yes, the listing notes an array of sizes is offered and can be selected from the drop-down menu; this entry is for the M8 size.
🏆 Our Verdict
Suited to boat owners, professional mechanics and anyone needing corrosion-resistant, anti-vibration fixings. A4 Stainless Steel 316 construction combined with a serrated flange gives durable saltwater resistance and secure mechanical hold. Long service life and OEM-friendly fit reduce maintenance and deliver solid long-term value.
