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BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts – Manufacturer, Exporter & Supplier

We manufacture and export BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts conforming to exact BS 4190 dimensional and mechanical specifications. Available in Grade 4.6 / Grade 8.8 / A2-70, our BS 4190 hex bolts 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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BS 4190 Key Specifications

The core specification data for BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts, at a glance.

Standard

BS 4190

Type

ISO Metric General Purpose Hexagon Bolts, Screws and Nuts

Size Range

M5 to M52

Thread Pitch

Coarse Thread

Property Class / Grade

Grade 4.6 / Grade 8.8 / A2-70

Head / Drive Type

Hex Head / General Purpose

About BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts

BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts are hex bolts produced and tested to the exact requirements of the BS 4190 specification. Featuring a Hex Head / General Purpose configuration with Coarse Thread thread form, they are available in property classes Grade 4.6 / Grade 8.8 / A2-70 across a size range of M5 to M52. The BS 4190 standard governs dimensional tolerances, mechanical properties including tensile strength, proof load and hardness, as well as surface finish requirements to ensure dependable performance in UK General Construction and Structural Work applications worldwide.
Our BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts 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 Maintenance, Infrastructure and General Engineering applications. As a global exporter of BS 4190 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

Grade 4.6 Alloy / Stainless Steel

Country of Origin

India

Standard Body

BS

Corrosion Resistance

Salt-spray tested to relevant grade

Recommended Torque

Per property class / grade

Storage Conditions

Dry, corrosion-inhibited packing

BS 4190 Dimensions & Size Chart

Precise dimensional data for every BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts size, cross-referenced against the standard’s key measurement points.
Size (M)s (mm)k (mm)L Range (mm)
M6104.016–200
M8135.320–200
M10176.425–200
M12197.530–200
M162410.040–200
M203012.550–200
M243615.060–200
M304618.775–200
Key Dimension Callouts

d

Nominal thread diameter measured across the major thread.

l

Overall bolt length from bearing surface to thread end.

k

Head height from bearing surface to top face.

s

Across-flats hexagon size for wrench engagement.

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BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts – Material Grades & Property Classes

BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts are available across multiple property classes and surface finish options to match load-bearing and corrosion-resistance requirements for UK General Construction, Structural Work and Maintenance applications.
Property Classes
Grade 4.6 Grade 8.8 A2-70
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 BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts?

Nine reasons buyers worldwide rely on us as their BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts manufacturer and export partner.
ISO Certified Production

Every batch of BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts 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 BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts shipment.

48-hr Dispatch on Stock Items

Commonly stocked BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts 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 BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts to buyers in over 50 countries worldwide.

Custom Sizes & Lengths

Non-standard BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts lengths, diameters and special thread pitches are produced to order to match your drawing requirements.

Competitive Factory Pricing

Direct-from-factory pricing on BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts with no middleman markup, offering the best value on volume and repeat orders.

In-House Metallurgical Testing

Hardness, tensile strength and dimensional checks for BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts are performed in our in-house laboratory before every release.

Consolidated Multi-Standard Shipping

Combine BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts 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 BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts export order.

BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts – Applications & End Uses

BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts are widely specified across multiple industries. Select an industry below to see how our BS 4190 hex bolts are applied.
BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts are used in uk general construction for critical fastening applications where dimensional accuracy and mechanical performance are essential. Grade Grade 4.6 is most commonly specified for uk general construction environments.
In structural work, BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts are valued for consistent dimensions and reliable load-bearing capability. We supply with full test documentation to support quality audits and project inspections.
BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts are used in maintenance assemblies where precise torque control and consistent fit are critical. We supply to OEM manufacturers and contractors with custom packaging formats.
For infrastructure applications, BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts are supplied with material test reports, dimensional inspection certificates and PPAP documentation where required.
BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts for general engineering use are selected from stainless steel or coated grades to provide appropriate corrosion resistance while maintaining specified mechanical performance.
In general engineering applications, BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts are fastened into assemblies requiring long-term reliability. Our export-packaged BS 4190 hex bolts arrive protected from transit corrosion with full documentation.

Request a Quote for BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts

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 BS 4190

Common questions from buyers sourcing BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts, covering sizes, grades, documentation and lead times.
We supply BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts from M5 to M52 in Coarse Thread thread. Standard lengths are stocked; non-standard lengths are produced to order. Contact us with your exact requirements for availability confirmation.
BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts are supplied in Grade 4.6 / Grade 8.8 / A2-70. 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 BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts 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 BS 4190 ISO Metric General Purpose Hexagon Bolts, Screws and Nuts 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
  • 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