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DIN 7990 Hexagon Head Bolts for Structural Steel Connections – Manufacturer, Exporter & Supplier

We manufacture and export DIN 7990 Hexagon Head Bolts for Structural Steel Connections conforming to exact DIN 7990 dimensional and mechanical specifications. Available in 4.6 / 5.6 / 8.8, our DIN 7990 structural 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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DIN 7990 Key Specifications

The core specification data for DIN 7990 Hexagon Head Bolts for Structural Steel Connections, at a glance.

Standard

DIN 7990

Type

Hexagon Head Bolts for Structural Steel Connections

Size Range

M12 to M30

Thread Pitch

Coarse

Property Class / Grade

4.6 / 5.6 / 8.8

Head / Drive Type

Hex Head

About DIN 7990 Hexagon Head Bolts for Structural Steel Connections

DIN 7990 Hexagon Head Bolts for Structural Steel Connections are structural hex bolts produced and tested to the exact requirements of the DIN 7990 specification. Featuring a Hex Head configuration with Coarse thread form, they are available in property classes 4.6 / 5.6 / 8.8 across a size range of M12 to M30. The DIN 7990 standard governs dimensional tolerances, mechanical properties including tensile strength, proof load and hardness, as well as surface finish requirements to ensure dependable performance in Steel Construction and Industrial Sheds applications worldwide.
Our DIN 7990 Hexagon Head Bolts for Structural Steel Connections 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 Bridges, Structural Assembly and General Engineering applications. As a global exporter of DIN 7990 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

4.6 Alloy / Stainless Steel

Country of Origin

India

Standard Body

DIN

Corrosion Resistance

Salt-spray tested to relevant grade

Recommended Torque

Per property class / grade

Storage Conditions

Dry, corrosion-inhibited packing

DIN 7990 Dimensions & Size Chart

Precise dimensional data for every DIN 7990 Hexagon Head Bolts for Structural Steel Connections size, cross-referenced against the standard’s key measurement points.
Size (M)s (mm)e min (mm)k (mm)b (mm)L Range (mm)
M121921.107.53640–160
M162426.7510.04450–160
M203033.5312.55255–160
M223235.7214.06060–160
M243639.9815.06065–160
M274146.8317.06670–160
M304650.8518.77280–160
Key Dimension Callouts

d

Nominal thread diameter measured across the major thread.

l

Bolt length measured from under head to end.

b

Thread length measured from bolt end along shank.

s

Across-flats wrench size of the hexagon head.

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DIN 7990 Hexagon Head Bolts for Structural Steel Connections – Material Grades & Property Classes

DIN 7990 Hexagon Head Bolts for Structural Steel Connections are available across multiple property classes and surface finish options to match load-bearing and corrosion-resistance requirements for Steel Construction, Industrial Sheds and Bridges applications.
Property Classes
4.6 5.6 8.8
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 DIN 7990 Hexagon Head Bolts for Structural Steel Connections?

Nine reasons buyers worldwide rely on us as their DIN 7990 Hexagon Head Bolts for Structural Steel Connections manufacturer and export partner.
ISO Certified Production

Every batch of DIN 7990 Hexagon Head Bolts for Structural Steel Connections 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 DIN 7990 Hexagon Head Bolts for Structural Steel Connections shipment.

48-hr Dispatch on Stock Items

Commonly stocked DIN 7990 Hexagon Head Bolts for Structural Steel Connections 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 DIN 7990 Hexagon Head Bolts for Structural Steel Connections to buyers in over 50 countries worldwide.

Custom Sizes & Lengths

Non-standard DIN 7990 Hexagon Head Bolts for Structural Steel Connections lengths, diameters and special thread pitches are produced to order to match your drawing requirements.

Competitive Factory Pricing

Direct-from-factory pricing on DIN 7990 Hexagon Head Bolts for Structural Steel Connections with no middleman markup, offering the best value on volume and repeat orders.

In-House Metallurgical Testing

Hardness, tensile strength and dimensional checks for DIN 7990 Hexagon Head Bolts for Structural Steel Connections are performed in our in-house laboratory before every release.

Consolidated Multi-Standard Shipping

Combine DIN 7990 Hexagon Head Bolts for Structural Steel Connections 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 DIN 7990 Hexagon Head Bolts for Structural Steel Connections export order.

DIN 7990 Hexagon Head Bolts for Structural Steel Connections – Applications & End Uses

DIN 7990 Hexagon Head Bolts for Structural Steel Connections are widely specified across multiple industries. Select an industry below to see how our DIN 7990 structural hex bolts are applied.
DIN 7990 Hexagon Head Bolts for Structural Steel Connections are used in steel construction for critical fastening applications where dimensional accuracy and mechanical performance are essential. Grade 4.6 is most commonly specified for steel construction environments.
In industrial sheds, DIN 7990 Hexagon Head Bolts for Structural Steel Connections are valued for consistent dimensions and reliable load-bearing capability. We supply with full test documentation to support quality audits and project inspections.
DIN 7990 Hexagon Head Bolts for Structural Steel Connections are used in bridges assemblies where precise torque control and consistent fit are critical. We supply to OEM manufacturers and contractors with custom packaging formats.
For structural assembly applications, DIN 7990 Hexagon Head Bolts for Structural Steel Connections are supplied with material test reports, dimensional inspection certificates and PPAP documentation where required.
DIN 7990 Hexagon Head Bolts for Structural Steel Connections 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, DIN 7990 Hexagon Head Bolts for Structural Steel Connections are fastened into assemblies requiring long-term reliability. Our export-packaged DIN 7990 structural hex bolts arrive protected from transit corrosion with full documentation.

Request a Quote for DIN 7990 Hexagon Head Bolts for Structural Steel Connections

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 DIN 7990

Common questions from buyers sourcing DIN 7990 Hexagon Head Bolts for Structural Steel Connections, covering sizes, grades, documentation and lead times.
We supply DIN 7990 Hexagon Head Bolts for Structural Steel Connections from M12 to M30 in Coarse thread. Standard lengths are stocked; non-standard lengths are produced to order. Contact us with your exact requirements for availability confirmation.
DIN 7990 Hexagon Head Bolts for Structural Steel Connections are supplied in 4.6 / 5.6 / 8.8. 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 DIN 7990 Hexagon Head Bolts for Structural Steel Connections 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 DIN 7990 Hexagon Head Bolts for Structural Steel Connections 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
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  • Bengaluru
  • Chennai
  • Coimbatore
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  • US
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