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NI 5721 Hex Domed Cap Nuts | DIN 1587 | IS 7790 Manufacturer, Exporter

UNI 5721 – Hexagon Domed Cap Nuts Manufacturer, Supplier, Exporter & Stockist in India

DIPTI METAL INDUSTRIES, founded in 2009 by Kumpsingh Rajput, is a trusted global UNI 5721 manufacturer, UNI 5721 exporter, UNI 5721 supplier, UNI 5721 dealer, UNI 5721 distributor, UNI 5721 wholesaler, and UNI 5721 stockist of UNI 5721 Hexagon Domed Cap Nuts. We specialize in producing high-quality fastening solutions in compliance with UNI 5721, DIN 1587, PN 82181, and IS 7790 standards, delivering to customers in more than 50 countries worldwide.

Our precision-engineered hexagon domed cap nuts are designed for enhanced safety, corrosion protection, and aesthetic appeal in mechanical assemblies. They are widely used in automotive, machinery, construction, furniture, and decorative applications.

Product Overview

  • Standard: UNI 5721

  • Current Norm: DIN EN ISO 1587

  • Equivalent Norms: DIN 1587, PN 82181, IS 7790

  • Thread Type: Metric Coarse, Metric Fine (on request)

  • Available Sizes: M3 to M48 (custom sizes available)

  • Height: As per standard dimensions or custom specifications

  • Thread Tolerance: ISO 6H

Material Options

  • Carbon Steel – Class 6, 8, 10

  • Alloy Steel – High strength applications

  • Stainless Steel – A2-70, A4-80 grades for corrosion resistance

  • Brass – For decorative and non-magnetic use

  • Special Alloys – Upon request

Surface Finishes

  • Zinc Plated (Blue/Yellow)

  • Hot Dip Galvanized (HDG)

  • Nickel Plated

  • Chrome Plated

  • Black Oxide

  • Dacromet / Geomet Coating

  • Plain Self-Color

Key Features & Benefits

  • Protects exposed bolt threads from damage and corrosion

  • Enhances safety by covering sharp thread ends

  • Provides a finished, clean look in visible applications

  • Available in both coarse and fine pitch threads

  • Compliant with international and Indian standards

Applications

  • Automotive assemblies

  • Industrial machinery and equipment

  • Furniture manufacturing

  • Construction and infrastructure

  • Decorative fastening applications

  • Marine and outdoor structures

Manufacturing & Quality Control

All UNI 5721 Hexagon Domed Cap Nuts are produced under strict quality management systems.

  • Certification: EN 10204 3.1 / 3.2

  • Testing: Dimensional check, mechanical strength, coating thickness, salt spray test, PMI

  • Inspection: In-house + Third Party (SGS, TUV, BV) on request

Packing & Export Details

  • Packaging: Bulk in cartons, small boxes, or blister packs

  • Protection: PE bags, anti-corrosion wrapping

  • Marking: Batch no. and size printed for full traceability

  • Ports of Loading: Nhava Sheva, Mundra, Chennai, Kolkata

  • Shipping Terms: EXW, FOB, CFR, CIF, DDP (as per client requirement)

Export Destinations

We proudly export our UNI 5721 / DIN 1587 / IS 7790 Hexagon Domed Cap Nuts to:
USA, UK, Germany, France, Italy, Spain, Netherlands, Poland, UAE, Saudi Arabia, Qatar, Oman, Kuwait, South Africa, Egypt, Turkey, Russia, Australia, New Zealand, Japan, South Korea, Malaysia, Singapore, Vietnam, Brazil, Argentina, and many more.

Why Choose DIPTI METAL INDUSTRIES?

  • Established in 2009 with over 15 years of industry expertise

  • Founder-led quality commitment by Kumpsingh Rajput

  • In-house manufacturing with precision machining and advanced coating lines

  • Global exports with on-time delivery and competitive pricing

  • Compliance with UNI, DIN, PN, IS, ISO standards for guaranteed interchangeability

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