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Screws City Hexagon Domed Cap Nuts Review: Corrosion-resistant fittings for secure assemblies

M5 (5mm) Hexagon Domed Cap Nuts Fit Screws Bolts A2 Stainless Steel (Pack of 20) A03E
4.6
[M5 Thread Size]  Standard M5 thread fits compatible bolts and fasteners for versatile applications.
[0.8mm Thread Pitch]  Precision 0.8mm pitch ensures secure, accurate threading and tight assembly.
[Optimized Nut Height]  9.42–10mm height provides strong thread engagement and reliable fastening strength.
[A2 Stainless Steel]  Corrosion-resistant A2 stainless steel offers durability in indoor and mild outdoor environments.
[Wide Application Use]  Ideal for machinery, electronics, automotive repairs, and general fastenings.
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Hardware fasteners for neat, finished assemblies that promise consistent fit and corrosion resistance. Home improvers and workshop users gain tidy, protected joints that look professional and stay secure. Are Screws City Hexagon Domed Cap Nuts the right choice for your M5 installations?

⚡ At a Glance
  • Material & Corrosion Resistance: A2 stainless steel for general-purpose corrosion resistance in everyday environments
  • Best for: DIYers, workshop technicians and maintenance teams needing tidy, capped screw finishes
  • Not ideal for: Applications requiring specialised alloys or environments beyond general-purpose stainless performance

M5 hexagon domed cap nuts in A2 stainless steel, with 0.8mm pitch and nut height 9.42–10mm. Supplied in a pack of 20 for multiple fittings and repairs.


Corrosion resistance and lasting finish – thanks to A2 stainless steel

A2 stainless steel is a widely used grade for general corrosion resistance, chosen for exposed fittings. The alloy forms a passive surface layer that reduces surface rust in everyday conditions.

Reduced surface corrosion keeps visible fittings looking cleaner for longer and lowers maintenance frequency.

Precise thread engagement – with M5 size and 0.8mm pitch

M5 designation paired with a 0.8mm pitch matches standard metric M5 screws for consistent thread fit. Accurate thread dimensions help avoid cross-threading during assembly.

Secure, repeatable tightening ensures joints remain snug, reducing the chance of loosening during use or vibration.

Tidy, protective finish – with generous nut height and domed cap

Nut height of approximately 9.42–10mm gives enough depth to cover protruding screw threads while the domed cap produces a smooth exterior. The hexagon base allows standard spanner tightening.

Exposed threads are concealed and protected, delivering a professional appearance and lowering snag risk on finished assemblies.

✨ The 4 Key Reasons for Screws City Hexagon Domed Cap Nuts
  1. Domed Cap Design – Hides screw heads and creates a polished, finished joint
  2. Hexagon Base – Allows tightening with standard spanners for quick installation
  3. Consistent Machining – Promotes uniform appearance across multiple fittings
  4. Bulk Pack – Supplies enough nuts for small projects and routine maintenance

(Exactly 4 points. Feature in bold, then em dash, then benefit. Benefit must be concrete and measurable. No repetition of subheadings, but summary. CRITICAL: DO NOT repeat content from at_a_glance section.)

📋 Technical Details at a Glance
  • Category: BISS
  • Shape: Hexagon domed cap nut
  • Size: M5
  • Thread pitch: 0.8mm
  • Nut height: 9.42mm - 10mm
❓ Frequently Asked Questions

Q: What screw size do these nuts fit?

A: They are sized for M5 screws with a 0.8mm thread pitch.

Q: What material are the nuts made from?

A: Manufactured from A2 stainless steel, suitable for general-purpose corrosion resistance.

Q: How many nuts come in a pack?

A: Supplied as a pack of 20 for multiple fittings or small projects.

🏆 Our Verdict

Suitable for DIYers and workshop professionals who want neat, protected screw finishes for visible assemblies. A2 stainless steel construction combined with a domed cap and consistent M5 threading delivers corrosion resistance and tidy coverage for exposed screws. Good long-term choice for repeat installations, offering durable hardware that reduces maintenance and keeps fittings looking organised.