DIN985 Nylon Insert Lock Nuts, 316 Stainless Steel and Carbon Steel Metric Self-Locking Hex Nuts

Our DIN985 nylon insert lock nuts are manufactured for reliable fastening in metric threaded assemblies. The integrated nylon locking ring increases thread friction and helps prevent loosening caused by vibration or dynamic load. Compared with standard hex nuts, DIN985 lock nuts provide better retention in machinery, equipment, steel structures, automotive-related assemblies, and general industrial fastening systems.

The product can be supplied in several material options according to project requirements. For corrosion resistance and outdoor or humid environments, 316 stainless steel and stainless steel options are available. For general industrial fastening, cost-sensitive assembly, and zinc plated finishes, carbon steel and steel options are available. The page information also lists carbon steel as a key material option, with surface treatments including zinc plated and yellow zinc chromate.

These lock nuts follow the DIN985 structure and support metric thread requirements. Available sizes include commonly used metric sizes such as M5, M6, M7, M8, M10, M12, M14, M16, M22, and broader custom size coverage from M3 to M48. Custom logo, packaging, and drawing-based customization can be supported for bulk orders.

Specifications Table

Material and Grade Description

The available material grades listed for this DIN985 nylon insert lock nut include 316 stainless steel, stainless steel, steel, and carbon steel.

• 316 stainless steel is suitable for applications requiring stronger corrosion resistance, especially in humid, outdoor, chemical, marine-adjacent, or wash-down environments.
• Stainless steel options are suitable for clean assembly, rust-resistant fastening, equipment manufacturing, and exposed fastening points.
• Carbon steel is suitable for general industrial fastening, machinery, construction hardware, and cost-effective bulk fastener supply. The listed carbon steel options can be supplied with zinc plated or yellow zinc chromate surface treatment for improved surface protection.
• Steel options are suitable for standard fastening use where durability, availability, and cost efficiency are important.

Key Features

• Reliable DIN985 nylon insert self-locking design
• Metric thread system for industrial fastening compatibility
• Available in 316 stainless steel, stainless steel, steel, and carbon steel
• Carbon steel options with zinc plated or yellow zinc chromate finish
• Suitable for vibration-resistant fastening applications
• Wide size coverage from M3 to M48
• Supports heavy industry, general machinery, retail hardware, and industrial assembly
• Custom logo, packaging, and drawing-based production available
• Bulk packaging by bag, carton, and pallet

Applications

DIN985 nylon insert lock nuts are widely used in machinery assembly, industrial equipment, construction hardware, automotive-related parts, agricultural machinery, maintenance projects, steel structure fastening, electrical equipment, and general metric fastening systems.

They are especially useful where standard nuts may loosen under vibration or repeated movement. The nylon insert helps maintain locking force, making these nuts a practical choice for equipment that requires stable and repeatable fastening performance.

FAQ

Q1: What materials are available for these DIN985 nylon insert lock nuts?

A1: The listed material options include 316 stainless steel, stainless steel, steel, and carbon steel. Carbon steel is also listed as a main material option.

Q2: What surface treatments are available?

A2: Available surface treatments include zinc plated and yellow zinc chromate. Plain finish is also listed as an option.

Q3: Are these lock nuts metric or inch size?

A3: These are metric DIN985 nylon insert lock nuts. The listed metric size range covers M3-M48, with common sizes such as M5, M6, M7, M8, M10, M12, M14, M16, and M22.

Q4: What is the difference between 316 stainless steel and carbon steel lock nuts?

A4: 316 stainless steel provides better corrosion resistance and is suitable for humid, outdoor, or more demanding environments. Carbon steel is a cost-effective choice for general industrial applications and can be supplied with zinc plated or yellow zinc chromate surface treatment.

Q5: Can the packaging be customized?

A5: Yes. Custom packaging is available for bulk orders. Bag, carton, and pallet packaging options are supported.

Q6: Can these lock nuts be produced according to drawings?

A6: Yes. Drawing-based customization and sample-based customization can be supported for suitable order quantities.

Q7: What industries use DIN985 nylon insert lock nuts?

A7: They are used in heavy industry, machinery, industrial equipment, retail hardware, general assembly, maintenance, construction hardware, and vibration-resistant fastening applications.

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Looking for reliable DIN985 nylon insert lock nuts for your next project?

Contact Hotop Fasteners in Handan, Hebei, China for metric lock nuts in 316 stainless steel, stainless steel, steel, and carbon steel. We can support bulk supply, zinc plated and yellow zinc chromate finishes, custom packaging, and drawing-based fastener requirements.

Send your size list, material requirement, surface treatment, quantity, and packaging needs to get a fast quotation.