CSN Fasteners – Manufacturer, Exporter & Supplier

Precision-engineered fasteners manufactured to Czech CSN standard specifications, exported to over 50 countries worldwide. Sterling Fasteners produces the full CSN-standard bolt, screw, nut and washer range, backed by full material traceability and third-party mill test reports for Central European specification projects.

300+

Sizes Available

20+

Standards Covered

50+

Countries Exported

25+

Years Experience

What is CSN Fasteners?

CSN Fasteners are bolts, screws, nuts and washers manufactured to Česká státní norma (CSN) specifications, the national standard historically used across the Czech Republic and Slovakia and closely aligned with DIN metric practice. CSN specifications define precise tolerances for thread pitch, head geometry, drive type and material property class, making CSN fasteners a trusted reference for Central and Eastern European engineering projects and legacy equipment maintenance. Sterling Fasteners manufactures the complete CSN catalogue — hex bolts, hex screws, hex nuts and washers — under a single quality management system, giving buyers one supplier for an entire CSN bill of materials. Our cold-forging and CNC threading lines dedicated to metric fasteners are supported by an in-house metallurgical lab for batch testing. Whether you need a single CSN size or a mixed container of several CSN standards, our export team consolidates documentation, packing lists and mill certificates into one shipment.
Attribute Value
Material Options Carbon Steel
Thread Type Metric
Strength Grade 8.8, 10.9
Finish Zinc Plated
Common Standards CSN Standards
Applications Mechanical Fastening
Industries Construction Machinery

Why Choose Us as Your CSN Fasteners Manufacturer

From certified production to export-ready documentation, here’s what sets Sterling Fasteners apart as a CSN fasteners manufacturer and supplier.
ISO Certified

Every CSN fastener is manufactured under our ISO 9001:2015 quality management system, with in-process and final inspection at every stage.

Global Export

We ship CSN fasteners to 50+ countries with complete export documentation, consolidated freight and customs-ready paperwork.

Fast Delivery

Stocked CSN sizes dispatch within 48 hours; production runs for non-stock sizes are scheduled weekly to keep lead times short.

Full Documentation

EN 10204 3.1 mill test certificates and full batch traceability accompany every CSN fastener shipment.

Custom Sizes

Non-standard lengths, materials and finishes for CSN fasteners are produced to customer drawing, subject to minimum order quantities.

Competitive Pricing

Factory-direct manufacturing keeps CSN fastener pricing competitive, with tiered discounts on bulk export orders.

Explore Related CSN Fastener Standards & Specifications

Explore CSN fastener standards featuring bolts, nuts, screws, washers, threaded rods, and industrial fastening solutions. Access technical specifications, material information, dimensions, and engineering applications.

CSN Industrial Fasteners – Complete Range of Standards, Sizes and Threads

CSN provides a practical reference for industrial fasteners, covering the relevant engineering standards for bolts, nuts, screws, washers, and threaded rods where applicable. It summarizes typical size ranges, thread series, and dimensional specifications used in precision manufacturing and export-ready fastening solutions.
StandardTypeSize RangeThread
CSN 02 1101Hex BoltM5 – M64Coarse
CSN 02 1103Hex Bolt (Fine Thread)M8 – M64Fine
CSN 02 1401Hex NutM3 – M64Coarse & Fine
CSN 02 1740Flat WasherM3 – M64—
CSN 02 1143Socket Head Cap ScrewM3 – M48Coarse & Fine

CSN Material Grades, Heat Treatment and Surface Finishes for Industrial Fasteners

CSN fasteners are supplied across a range of property classes and surface treatments, selected to match load, corrosion and environmental requirements.
Property Classes
4.6 8.8 10.9 12.9 A2-70 A4-80
Surface Treatments
Zinc Plated Hot-Dip Galvanized Geomet Dacromet Plain / Black Oxide

CSN Certifications, Inspection Standards and Quality Assurance for Fasteners

Every CSN fastener shipment is backed by recognised quality certifications and independent verification, giving buyers confidence in material integrity and compliance.
ISO 9001:2015

Certified quality management system covering design, manufacturing and dispatch.

EN 10204 3.1 Mill Test Reports

Independently validated material certificates issued with every shipment.

Third-Party Inspection

Independent third-party inspection can be arranged upon customer request before shipment.

CSN Fasteners for Industrial, Mechanical and Engineering Applications

CSN fasteners are widely used in machinery, construction, utilities, transport equipment and maintenance assemblies where dependable fastening is essential. They support precision manufacturing, durable performance and compliance-focused engineering across demanding industrial environments worldwide.
CSN fasteners remain a core specification for machine building and equipment manufacturing across Central European supply chains.
CSN-standard bolts and nuts are used in vehicle assembly and maintenance across legacy and current Central European automotive lines.
CSN fasteners support track fittings and rolling stock maintenance across the Czech and Slovak rail networks.
CSN structural bolts and washers provide reliable bolting strength for building frameworks and infrastructure projects.

Source CSN Industrial Fasteners for Global Engineering Projects

Request a quotation for CSN fasteners or share your project requirements for bolts, nuts, screws, washers and threaded rods produced to international standards. We support industrial applications worldwide with technical guidance, reliable supply and certified quality focus.

CSN FAQs, Technical Information and Fastener Buying Guide

CSN fasteners are specified for industrial applications where dimensional accuracy, thread specifications, material selection, and engineering standards determine performance. For bolts, nuts, screws, washers, and threaded rods, compliance with tolerances, quality requirements, and service conditions is essential.
Sterling Fasteners manufactures the full range of common CSN fastener standards, including CSN 02 1101 hex bolts, CSN 02 1401 hex nuts and CSN 02 1740 washers, in metric sizes M3 to M64.
Minimum order quantities for CSN fasteners vary by size and standard, typically starting from 500 pieces per size, with smaller trial orders available for new export customers.
Yes, Sterling Fasteners produces CSN fasteners in non-standard lengths, special alloys and custom surface finishes to customer drawings, subject to minimum order quantities.
Stocked CSN fastener sizes dispatch within 48 hours of order confirmation. Custom production runs typically ship within 3–5 weeks depending on size and order volume.

Industrial Cities We Serve:

  • Ahmedabad
  • Aurangabad
  • Bengaluru
  • Chennai
  • Coimbatore
  • Faridabad
  • Gandhidham
  • Greater Noida
  • Gurugram
  • Hazira
  • Hosur
  • Hyderabad
  • Jamnagar
  • Jamshedpur
  • Ludhiana
  • Mumbai
  • Mundra
  • Mysuru
  • Nagpur
  • Nashik
  • Navi Mumbai
  • Noida
  • Pune
  • Rajkot
  • Sanand
  • Surat
  • Thane
  • Tiruppur
  • Vadodara
  • Visakhapatnam

Countries We Export To:

  • US
  • Canada
  • Mexico
  • Germany
  • UK
  • France
  • Italy
  • Spain
  • Netherlands
  • Belgium
  • Poland
  • Sweden
  • Norway
  • Denmark
  • Turkey
  • UAE
  • Saudi Arabia
  • Qatar
  • Oman
  • Kuwait
  • Bahrain
  • South Africa
  • Egypt
  • Nigeria
  • Australia
  • New Zealand
  • Singapore
  • Malaysia
  • Indonesia
  • Thailand
  • Vietnam
  • South Korea
  • Japan
  • Brazil