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Stainless Steel Dome Nut Nylon Insert A2 DIN 986 Hex Polyamide Acorn Prevailing Torque Type Hexagon Domed Cap Nuts 304
$121.99 – $478.99
Description
The stainless steel dome nut nylon insert with a nylon insert are prevailing torque fasteners designed to provide secure locking, vibration resistance, and corrosion protection. Made from A2-70 (304 stainless steel), these hexagon domed cap nuts feature a polyamide (nylon) insert, ensuring they remain firmly in place without the need for additional locking mechanisms. Ever Hardware provides custom made fasteners and customizable packaging.
1. Reliable Self-Locking Mechanism
• The nylon insert increases friction on the bolt threads, preventing the nut from loosening due to vibration, rotation, or shock loads.
• Eliminates the need for additional locking washers or adhesives, reducing assembly time and costs.
• Ideal for dynamic and high-vibration environments, such as automotive, machinery, and industrial equipment.
2. Corrosion and Rust Resistance
• Made from 304 stainless steel (A2-70), these nuts offer excellent resistance to moisture, oxidation, and mild chemicals.
• Suitable for outdoor, marine, food-grade, and industrial applications where exposure to humidity, salt, and chemicals is common.
3. Protective Domed Cap Design
• The smooth, rounded cap covers the exposed bolt end, preventing damage to surrounding components, skin, or fabric.
• Enhances safety by eliminating sharp thread exposure, making it ideal for decorative and furniture applications.
• Provides a clean, finished look for architectural, automotive, and industrial assemblies.
4. Vibration and Shock Absorption
• The nylon insert acts as a cushion, absorbing vibrations and mechanical shocks, ensuring a stable and long-lasting connection.
• Commonly used in motorcycles, bicycles, railway systems, and heavy machinery.
5. High Strength and Durability
• The A2-70 stainless steel composition provides high tensile strength and durability, making these nuts suitable for load-bearing and mechanical fastening applications.
• Withstands moderate mechanical stress while maintaining a secure fit over time.
6. Prevents Thread Damage and Galling
• The nylon insert reduces direct metal-to-metal contact, minimizing the risk of thread galling and seizing, which is common in stainless steel fasteners.
• Ensures smooth and easy disassembly, even after long-term use.
7. Ideal for Various Applications
• Suitable for automotive, construction, furniture, sports equipment, and marine applications.
• Frequently used in safety enclosures, electrical panels, and machine guards due to its protective dome shape.
8. Compliance with DIN 986 Standards
• Manufactured to DIN 986 specifications, ensuring standardized dimensions and compatibility with metric bolts.
Conclusion
Stainless steel dome nut nylon insert DIN 986 (A2-70, 304) offer a secure, corrosion-resistant, and vibration-proof fastening solution. Their self-locking design, protective domed cap, and durable stainless steel construction make them ideal for industrial, automotive, marine, and architectural applications, providing long-lasting reliability and safety.
Thread Size | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 |
---|---|---|---|---|---|---|---|---|---|
Hex A/F | 7.0 | 8.0 | 10.0 | 13.0 | 16.0 | 18.0 | 21.0 | 24.0 | 30.0 |
Hex Height Min | 2.9 | 4.4 | 4.9 | 6.44 | 8.04 | 10.37 | 12.1 | 14.1 | 16.9 |
Metal Part Height | 5.6 | 6.0 | 7.5 | 8.9 | 10.5 | 13.5 | 15.5 | 16.5 | 21 |
Total Height | 9.6 | 10.5 | 12.0 | 14.0 | 18.1 | 22.5 | 26.4 | 27.5 | 35.0 |
Size | M4-M12 |
---|---|
Standard | DIN 986 Coarse Thread |
Dome Type | Metal Dome |
Insert | Nylon Insert |
Material | Stainless Steel A2/304 |
Color | Silver/Natural |
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