DOME NUTS TO FIT METRIC BOLTS A2 STAINLESS STEEL M3 to M12 DOMED ACORN NUT
DOME NUTS TO FIT METRIC BOLTS A2 STAINLESS STEEL M3 to M12 DOMED ACORN NUT
DOME NUTS TO FIT METRIC BOLTS A2 STAINLESS STEEL M3 to M12 DOMED ACORN NUT
DOME NUTS TO FIT METRIC BOLTS A2 STAINLESS STEEL M3 to M12 DOMED ACORN NUT
DOME NUTS TO FIT METRIC BOLTS A2 STAINLESS STEEL M3 to M12 DOMED ACORN NUT
DOME NUTS TO FIT METRIC BOLTS A2 STAINLESS STEEL M3 to M12 DOMED ACORN NUT
DOME NUTS TO FIT METRIC BOLTS A2 STAINLESS STEEL M3 to M12 DOMED ACORN NUT
DOME NUTS TO FIT METRIC BOLTS A2 STAINLESS STEEL M3 to M12 DOMED ACORN NUT
DOME NUTS TO FIT METRIC BOLTS A2 STAINLESS STEEL M3 to M12 DOMED ACORN NUT
DOME NUTS TO FIT METRIC BOLTS A2 STAINLESS STEEL M3 to M12 DOMED ACORN NUT

DOME NUTS TO FIT METRIC BOLTS A2 STAINLESS STEEL M3 to M12 DOMED ACORN NUT

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🔩 M3-M12 SIZES ⚙️ A2-70 STAINLESS STEEL 🏆 DIN1587 STANDARD

Premium Stainless Steel Dome Nuts (Acorn Nuts)

Safety meets style with our decorative dome nuts! Also known as acorn nuts or cap nuts, these provide both functional protection and aesthetic appeal for exposed bolt ends.

🔩
Protective Cap
Covers sharp bolt ends
⚙️
Hex Base
Standard wrench fitting
🎯
Dome Design
Smooth, rounded finish

⭐ Key Features of Our Dome Nuts

Our stainless steel dome nuts combine safety, aesthetics, and durability:

🔩 M3 to M12 Sizes ⚙️ A2-70 Stainless Steel 🛡️ Corrosion Resistant 📏 DIN1587 Standard 🎯 Safety Protection ✨ Decorative Finish 🔧 Easy Installation 📦 Custom Quantity Options

📐 Complete Size Range

Available in seven metric sizes to fit your specific needs:

M3
5.5mm Spanner
0.5mm Pitch
M4
7mm Spanner
0.7mm Pitch
M5
8mm Spanner
0.8mm Pitch
M6
10mm Spanner
1.0mm Pitch
M8
13mm Spanner
1.25mm Pitch
M10
17mm Spanner
1.5mm Pitch
M12
19mm Spanner
1.75mm Pitch

📊 Technical Specifications

Size Thread Pitch Spanner Size Common Applications
M3 0.5mm 5.5mm Electronics, small assemblies
M4 0.7mm 7mm Small machinery, instruments
M5 0.8mm 8mm General machinery, furniture
M6 1.0mm 10mm Automotive, equipment
M8 1.25mm 13mm Industrial machinery
M10 1.5mm 17mm Heavy equipment, structural
M12 1.75mm 19mm Construction, large machinery
General Specification Details
Product Type Dome Nuts / Acorn Nuts / Cap Nuts
Material A2-70 Stainless Steel (304 Equivalent)
Standard DIN1587 (German Industrial Standard)
Thread Type Metric Coarse Threads (Most Common Type)
Design Features Hexagonal base with domed cap, enclosed top
Surface Finish Untreated (Natural Stainless Steel Finish)
Primary Function Cover and protect exposed bolt ends
Corrosion Resistance Excellent - Suitable for Outdoor & Marine Use
Safety Rating Eliminates sharp edges and protruding threads

✅ Advantages of Dome Nuts

Why choose dome nuts over standard nuts? These protective nuts offer significant benefits:

  • Safety enhancement - Eliminates sharp, exposed bolt ends that can cause injury
  • Aesthetic improvement - Provides a clean, finished appearance to assemblies
  • Thread protection - Prevents damage to bolt threads from impact or corrosion
  • Debris prevention - Keeps dirt and contaminants out of threaded areas
  • Corrosion resistance - Stainless steel construction for long-term durability
  • Easy identification - Dome shape makes them easily distinguishable from standard nuts

🏭 Common Applications

Our stainless steel dome nuts are ideal for:

🚗

Automotive & Vehicles

Interior trim, seat bolts, accessory mounting, visible fasteners

👕

Furniture & Fixtures

Assembly furniture, decorative fixtures, bed frames, shelving

🎮

Consumer Products

Exercise equipment, toys, appliances, and recreational products

⚡

Electrical & Electronics

Panel boxes, equipment racks, control panels, enclosures

🏗️

Industrial Equipment

Machinery guards, safety rails, access panels, equipment frames

🎭

Architectural & Display

Display cases, signage, exhibit frames, decorative structures

🔧 Installation Recommendations

For best results with your dome nuts:

  1. Select the correct size - Match the nut thread to the bolt diameter
  2. Use proper wrench - Correct spanner size prevents rounding
  3. Hand-start threads - Begin threading by hand to prevent cross-threading
  4. Final tightening - Tighten to the appropriate torque for the application
  5. Check flushness - Ensure the dome sits properly on the work surface
  6. Consider thread length - Ensure bolt end doesn't bottom out inside the dome

❓ Frequently Asked Questions

Q: What's the difference between dome nuts and acorn nuts? 🔩
A: Dome nuts and acorn nuts are essentially the same product - both terms refer to nuts with a domed, enclosed cap that covers the bolt end. "Acorn nut" is more common in North America, while "dome nut" is frequently used internationally. Both provide safety and aesthetic benefits by covering exposed bolt threads.
Q: Can these be used for structural applications? 🏗️
A: While our dome nuts are made from A2-70 stainless steel with good mechanical properties, they are primarily designed for finishing and safety applications. For critical structural applications requiring specific torque values or load ratings, consult engineering specifications. Dome nuts work well for securing panels, covers, and non-structural components where appearance and safety are priorities.
Q: What happens if the bolt is too long? 📏
A: If a bolt is too long for a dome nut, the bolt end will contact the inside of the dome cap before the nut is fully tightened. This can prevent proper tightening and potentially damage the nut. For proper installation, ensure the bolt end does not extend beyond where it would contact the inside of the dome. Shorter bolts or trimming may be necessary for optimal fit.
Q: Are these suitable for outdoor or marine use? 🚤
A: Yes! Our A2 stainless steel dome nuts offer excellent corrosion resistance, making them suitable for outdoor, marine, and high-moisture environments. The enclosed design actually helps protect bolt threads from corrosion by keeping water and contaminants out. For saltwater immersion, A4 (316) stainless steel might be preferred for maximum corrosion resistance.
Q: What is the DIN 1587 standard? 🇩🇪
A: DIN 1587 is a German industrial standard that specifies the dimensions, tolerances, and technical requirements for dome nuts (acorn nuts). This standard ensures consistent quality, proper thread engagement, and reliable performance. It covers the dome shape, hex dimensions, thread specifications, and material requirements for manufacturing.
Q: Can these be used with Nyloc or locking features? 🔒
A: Our dome nuts are standard nuts without built-in locking features. For applications requiring vibration resistance, you can use them in combination with external locking methods like lock washers, thread-locking compounds, or double-nutting techniques. Some manufacturers offer dome nuts with nylon inserts, but these are not standard DIN1587 dome nuts.

🚚 Fast Shipping & Premium Quality

Quick Dispatch & Safety Focus: Orders placed Monday-Friday are typically dispatched the next business day. These stainless steel dome nuts are manufactured to exacting DIN1587 standards, ensuring precise dimensions, consistent quality, and reliable performance for your safety-critical and decorative applications where exposed bolt ends need protection.