🔒 A2 Stainless Steel Nyloc Nuts – Self-Locking Nylon Insert Hex Nuts (M2.5 to M16)
🏷️ Brand: HomeDIYer Fastener | DIN985 | A2-70
📌 Overview — Keep your assemblies tight, even under heavy vibration. Whether you're working on automotive suspension, industrial equipment, outdoor furniture, or a custom machinery build, nothing is more frustrating than a nut that backs off over time. Our Nylon Insert Locking Nuts (Nyloc Nuts) solve that problem with a reliable nylon ring that grips the male threads securely. Made from A2-70 stainless steel, these metric hex nuts resist rust and corrosion while providing consistent locking torque. Perfect for mechanics, fabricators, and DIYers who demand safety and longevity — no more loose fasteners, no need for chemical threadlockers.
✨ Key Features of A2-70 Stainless Steel Nyloc Locking Nuts
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Nylon Insert Locking Mechanism – The integrated nylon ring creates friction against the male thread, preventing loosening from shock and vibration.
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A2-70 Stainless Steel (304 equivalent) – Outstanding corrosion resistance for marine, outdoor, and high-humidity environments.
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Metric Coarse Threads (DIN985) – Standard ISO metric threads from M2.5 up to M16, fully compatible with common bolts and studs.
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Reusable & Reliable – Nyloc nuts can be reused multiple times while still retaining good locking performance (replace after many cycles for critical applications).
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No Need for Adhesives or Washers – Built-in locking eliminates messy threadlockers and extra hardware, saving time and cost.
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Wide Size Range M2.5 to M16 – Covers delicate electronics to heavy structural assemblies. Select your exact size and quantity.
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Untreated Natural Finish – Clean stainless surface, no coatings to chip or peel, maintains a professional appearance.
📏 Technical Specifications – DIN985 Nyloc Lock Nuts (Metric Coarse)
| Thread Size (Metric) |
Thread Pitch (mm) |
Spanner / Wrench Size (mm) |
| M2.5 |
0.45 |
5.0 |
| M3 |
0.5 |
5.5 |
| M4 |
0.7 |
7.0 |
| M5 |
0.8 |
8.0 |
| M6 |
1.0 |
10.0 |
| M8 |
1.25 |
13.0 |
| M10 |
1.5 |
17.0 |
| M12 |
1.75 |
19.0 |
| M14 |
2.0 |
22.0 |
| M16 |
2.0 |
24.0 |
💡 Package & quantity: “As per Your Choice” – order the exact size and quantity you need. Common pack sizes available (10, 25, 50, 100 pcs) or bulk. All nuts are standard metric coarse threads, fully compatible with class 6g bolts.
🔩 A2-70 Stainless = Excellent corrosion resistance – Ideal for boat fittings, outdoor railings, food processing equipment, and automotive under-hood applications.
❓ Frequently Asked Questions – Nylon Insert Lock Nuts
Can I reuse a nyloc nut after removing it?
✅ Yes, you can reuse Nyloc nuts several times. The nylon insert deforms slightly to grip the threads, so after many cycles (typically 5-10 times), the locking torque may reduce. For safety-critical applications (e.g., automotive suspension, heavy machinery), we recommend replacing with a fresh nut. For general DIY or light-duty uses, reuse is perfectly fine.
What temperature range can these A2 stainless nyloc nuts handle?
🌡️ The nylon insert is rated for continuous use from -40°F to +250°F (-40°C to +120°C). For higher temperatures, consider all-metal lock nuts. At extreme cold, nylon remains effective; above 250°F, the nylon may soften and reduce locking ability. A2 stainless steel itself withstands much higher temps, but the insert is the limiting factor.
Do I need any special tools or washers with these locking nuts?
🔧 No special tools required – just a standard metric wrench or socket matching the spanner size in the table. The nylon insert provides the locking action, so you do not need split washers, lock washers, or threadlocker compounds. Simply tighten to the desired torque as you would with a standard nut.
Are these nuts compatible with any metric bolt?
📏 Yes, these nuts follow DIN985 standard with metric coarse threads (ISO metric). They fit any standard metric bolt or threaded rod of the same diameter and pitch (e.g., M6x1.0, M8x1.25). Avoid mixing with fine-thread bolts – always match the thread pitch. For most general-purpose metric fasteners, these Nyloc nuts are a direct replacement.
Will the nylon insert damage bolt threads or plating?
🛡️ No, the nylon ring is softer than steel and does not scratch or gall the bolt threads. It simply creates friction without damaging coatings like zinc, black oxide, or stainless passivation. This makes them ideal for use with finished or plated bolts.
⚙️ HomeDIYer Fastener – Precision metric locking nuts for professionals and makers. Order the exact size you need today.
