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ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) – Manufacturer, Exporter & Supplier

We manufacture and export ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) conforming to exact ISO 7040 dimensional and mechanical specifications. Available in 8 / A2-70 / A4-70, our ISO 7040 nylon lock nuts pass rigorous in-house testing — hardness, tensile and dimensional — before dispatch. ISO 9001:2015 certified production, EN 10204 3.1 mill test reports supplied as standard, and dedicated export documentation for 50+ destination countries.
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ISO 7040 Key Specifications

The core specification data for ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic), at a glance.

Standard

ISO 7040

Type

Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic)

Size Range

M3 to M36

Thread Pitch

Coarse

Property Class / Grade

8 / A2-70 / A4-70

Head / Drive Type

Hex / Nylon Insert

About ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic)

ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) are nylon lock nuts produced and tested to the exact requirements of the ISO 7040 specification. Featuring a Hex / Nylon Insert configuration with Coarse thread form, they are available in property classes 8 / A2-70 / A4-70 across a size range of M3 to M36. The ISO 7040 standard governs dimensional tolerances, mechanical properties including tensile strength, proof load and hardness, as well as surface finish requirements to ensure dependable performance in General Engineering and Machinery applications worldwide.
Our ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) are cold-forged from certified bar stock, heat-treated where required, and thread-rolled to guarantee consistent fit and fatigue performance. Every batch is documented with an EN 10204 3.1 Mill Test Report covering chemical composition, mechanical test results and dimensional inspection. Available in zinc electroplated, hot-dip galvanised, Geomet, Dacromet and black oxide finishes to match corrosion-resistance requirements for Automotive, Electronics and Appliances applications. As a global exporter of ISO 7040 fasteners, we consolidate orders with other standard-specification items into single shipments, backed by complete customs documentation for over 50 countries.
Technical Specifications

Raw Material

8 Alloy / Stainless Steel

Country of Origin

India

Standard Body

ISO

Corrosion Resistance

Salt-spray tested to relevant grade

Recommended Torque

Per property class / grade

Storage Conditions

Dry, corrosion-inhibited packing

ISO 7040 Dimensions & Size Chart

Precise dimensional data for every ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) size, cross-referenced against the standard’s key measurement points.
Size (M)s (mm)e min (mm)m (mm)
M35.56.014.0
M47.07.665.0
M58.08.795.0
M61011.056.0
M81314.388.0
M101718.9010.0
M121921.1012.0
M162426.7516.0
M203033.5320.0
Key Dimension Callouts

d

Nominal internal thread diameter of the prevailing torque nut.

P

Thread pitch distance between adjacent thread crests.

m

Overall nut height including the non-metallic insert.

s

Across-flats wrench size for hexagon tightening.

Discover More ISO Fastener Standards and Technical Specifications

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ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) – Material Grades & Property Classes

ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) are available across multiple property classes and surface finish options to match load-bearing and corrosion-resistance requirements for General Engineering, Machinery and Automotive applications.
Property Classes
8 A2-70 A4-70
Surface Treatments
Zinc Electroplated Hot-Dip Galvanised (HDG) Geomet Coating Dacromet Coating Black Oxide Phosphate & Oil Plain (Self Colour) Nickel Plated

Why Choose Us for ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic)?

Nine reasons buyers worldwide rely on us as their ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) manufacturer and export partner.
ISO Certified Production

Every batch of ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) is manufactured under an ISO 9001:2015 certified quality management system with full in-process control.

EN 10204 3.1 MTR Supplied

A mill test report covering chemical composition, tensile, hardness and dimensional inspection accompanies every ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) shipment.

48-hr Dispatch on Stock Items

Commonly stocked ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) sizes leave our warehouse within 48 hours of order confirmation, minimising your downtime.

Export to 50+ Countries

Established freight and customs partners ensure reliable delivery of ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) to buyers in over 50 countries worldwide.

Custom Sizes & Lengths

Non-standard ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) lengths, diameters and special thread pitches are produced to order to match your drawing requirements.

Competitive Factory Pricing

Direct-from-factory pricing on ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) with no middleman markup, offering the best value on volume and repeat orders.

In-House Metallurgical Testing

Hardness, tensile strength and dimensional checks for ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) are performed in our in-house laboratory before every release.

Consolidated Multi-Standard Shipping

Combine ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) with other standard-specification fasteners into a single container shipment to reduce freight costs.

Dedicated Export Documentation Team

Our specialist team prepares all customs, compliance and shipping paperwork for every ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) export order.

ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) – Applications & End Uses

ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) are widely specified across multiple industries. Select an industry below to see how our ISO 7040 nylon lock nuts are applied.
ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) are used in general engineering for critical fastening applications where dimensional accuracy and mechanical performance are essential. Grade 8 is most commonly specified for general engineering environments.
In machinery, ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) are valued for consistent dimensions and reliable load-bearing capability. We supply with full test documentation to support quality audits and project inspections.
ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) are used in automotive assemblies where precise torque control and consistent fit are critical. We supply to OEM manufacturers and contractors with custom packaging formats.
For electronics applications, ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) are supplied with material test reports, dimensional inspection certificates and PPAP documentation where required.
ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) for appliances use are selected from stainless steel or coated grades to provide appropriate corrosion resistance while maintaining specified mechanical performance.
In general engineering applications, ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) are fastened into assemblies requiring long-term reliability. Our export-packaged ISO 7040 nylon lock nuts arrive protected from transit corrosion with full documentation.

Request a Quote for ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic)

Get pricing and lead times for your required sizes and quantities. ISO 9001 certified. EN 10204 3.1 MTR supplied. Export to 50+ countries.
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Frequently Asked Questions About ISO 7040

Common questions from buyers sourcing ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic), covering sizes, grades, documentation and lead times.
We supply ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) from M3 to M36 in Coarse thread. Standard lengths are stocked; non-standard lengths are produced to order. Contact us with your exact requirements for availability confirmation.
ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) are supplied in 8 / A2-70 / A4-70. Carbon and alloy steel grades comply with ISO 898-1 and stainless steel grades comply with ISO 3506. ASTM grades are available for USA and Canadian export orders.
Every ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) order includes an EN 10204 3.1 Mill Test Report covering chemical composition, tensile strength, hardness and proof load. Third-party inspection by SGS, BV or TUV can be arranged on request.
Stocked ISO 7040 Prevailing Torque Hexagon Nuts – Nylon Insert (Non-Metallic) sizes dispatch within 48 hours of order confirmation. Custom lengths, special grades or surface finishes typically ship within 2-3 weeks. Contact us for a specific lead time on your required size and quantity.

Industrial Cities We Serve:

  • Ahmedabad
  • Aurangabad
  • Bengaluru
  • Chennai
  • Coimbatore
  • Faridabad
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  • Greater Noida
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