Lock Nuts (Nylon Insert & All-Metal) – Reliable Vibration-Resistant Fastening Solutions
Product Description
Lock Nuts are specialized fastening components engineered to resist loosening due to vibration, motion, and dynamic stress. Available in two main types—Nylon Insert Lock Nuts (Nyloc Nuts) and All-Metal Lock Nuts—these nuts offer superior resistance without the need for washers or adhesives.
At SM Fasteners, we manufacture a comprehensive range of lock nuts using precision machinery and certified materials. Whether you require chemical-resistant Nyloc nuts or high-temperature All-metal variants, our product line ensures uncompromising performance across every application.
Applications
Lock nuts are essential in critical fastening applications where standard nuts may back off:
Automotive & Commercial Vehicle Assemblies
Heavy Vibratory Equipment & Construction Machinery
Wind Turbines & Renewable Energy Infrastructure
Aerospace & Aviation Components
Bridges, Cranes, and Lifts
Rail Track and Wagon Fixtures
Technical Specifications
| Parameter | Details |
|---|---|
| Type | Nylon Insert Lock Nut, All-Metal Lock Nut |
| Standard | DIN 985, DIN 982, DIN 980, ISO 7040, ISO 7042, IFI 100/107 |
| Material | Mild Steel, SS 304, SS 316, High Tensile Steel, Brass |
| Grades | 4, 8, 10, A2-70, A4-80 |
| Size Range | M3 to M48 | 1/8” to 2” |
| Thread | Metric (Coarse/Fine), UNC, UNF |
| Finish | Self Color, Zinc Plated, Hot Dip Galvanized, Nickel, Dacromet |
| Temperature Resistance | -40°C to +120°C (Nylon), Up to 400°C (All-Metal) |
Why Choose Our Lock Nuts?
✅ Certified to International Fastener Standards
✅ Engineered for High Vibration & Load-Bearing Conditions
✅ Premium Nylon & Metallic Grip Mechanisms
✅ Available in Custom Threads & Coatings
✅ Ideal for High-Temperature & Critical Applications
Packaging and Delivery
Every piece of hardware is protected and labeled with care:
Vacuum-sealed polypacks or rust-protected pouches
Custom-labeled corrugated boxes with barcode/QR trace
Each carton marked with grade, thread, material, and quantity
Palletized for bulk international shipments
Industries We Serve
Automotive & Vehicle Assembly Plants
Oil & Gas Equipment Manufacturers
Renewable Energy Projects (Solar, Wind)
Aerospace Maintenance and OEMs
Defense & Military Equipment
Infrastructure & Railways
Marine and Coastal Engineering
Documents Supplied
We ensure full traceability and compliance for each shipment:
Material Test Certificate (EN 10204 3.1)
Dimensional Inspection Report
Coating & Finish Certificate
RoHS / REACH Compliance (On Request)
Mill Certification & Heat Number Traceability
Packing List with Batch Details
Request a Quotation
Looking for high-grade Nylon Insert or All-Metal Lock Nuts? Let us quote your requirement today!
📧 Email: susheel@smfastners.com
📞 Phone: +91 8968469570
💬 WhatsApp Chat: Click to Chat
SM Fasteners – Built to Lock, Engineered to Last.