Description
Full Product Description: Zinc-Plated Nyloc (Nylon-Insert Lock) Nuts — DIN 985, M3–M30 (Packs of 100)
Overview
These Nyloc nuts conform to DIN 985 (also aligned with ISO 10511), offering a self-locking function through an integrated nylon collar that provides prevailing torque and resists loosening due to vibration. ([turn0search7], [turn0search3])
Material & Locking Mechanism
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Material: Typically, high-tensile carbon steel (Grade 4 or Grade 8), zinc plated for corrosion protection and a bright finish. ([turn0search5], [turn0search3], [turn0search4])
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Locking Feature: A nylon insert at the top of the nut slightly deforms over the bolt threads, creating a secure, non-permanent jam fit for vibration resistance. ([turn0search3], [turn0search11])
Size Range & Packaging
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Standard Range: Available in metric sizes M3 to M30 — all are dimensionally specified in the DIN 985 standard ([turn0search7], [turn0search0]).
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Packaging: Supplied in packs of 100 units, ideal for commercial and bulk needs.
Specifications (Example for Key Sizes)
| Size | Tool (A/F) | Height (Thin Nut) | Total Height* |
|---|---|---|---|
| M3 | ~5.5 mm | ~2.4 mm | ~4.0 mm |
| M6 | ~10 mm | ~4.0 mm | ~6.0 mm |
| M12 | ~19 mm | ~8.0 mm | ~12.0 mm |
| M30 | ~46 mm | ~30 mm | — |
| *Total height includes nylon insertion ([turn0search3], [turn0search11], [turn0search5]). |
Features & Applications
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Reliable Locking: Eliminates need for lock washers or adhesives through simple nylon-friction locking. ([turn0search10], [turn0search3])
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Vibration Resistant: Ideal for use in automotive, machining, construction, and industrial machinery.
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Corrosion-Resistant Zinc Finish: Suitable for general-purpose indoor and mild outdoor use.
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Compact Profile (Type T): A thinner design compared to standard lock nuts offers space savings in tight assemblies. ([turn0search7], [turn0search4])
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Wide Compatibility: Meets DIN 985 standard across Metric ranges, enabling seamless replacement and use across suppliers.





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