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DIN 931 Hexagon Head Bolts – Partial Thread – Manufacturer, Exporter & Supplier

We manufacture and export DIN 931 Hexagon Head Bolts – Partial Thread conforming to exact DIN 931 dimensional and mechanical specifications. Available in 4.6 / 5.6 / 8.8 / 10.9 / A2-70 / A4-70, our DIN 931 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 931 Key Specifications

The core specification data for DIN 931 Hexagon Head Bolts – Partial Thread, at a glance.

Standard

DIN 931

Type

Hexagon Head Bolts – Partial Thread

Size Range

M4 to M100

Thread Pitch

Coarse & Fine

Property Class / Grade

4.6 / 5.6 / 8.8 / 10.9 / A2-70 / A4-70

Head / Drive Type

Hex Head / Partial Thread

About DIN 931 Hexagon Head Bolts – Partial Thread

DIN 931 Hexagon Head Bolts – Partial Thread are hex bolts produced and tested to the exact requirements of the DIN 931 specification. Featuring a Hex Head / Partial Thread configuration with Coarse & Fine thread form, they are available in property classes 4.6 / 5.6 / 8.8 / 10.9 / A2-70 / A4-70 across a size range of M4 to M100. The DIN 931 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 Construction applications worldwide.
Our DIN 931 Hexagon Head Bolts – Partial Thread 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 Machinery, Wind Energy and Rail & Infrastructure applications. As a global exporter of DIN 931 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 931 Dimensions & Size Chart

Precise dimensional data for every DIN 931 Hexagon Head Bolts – Partial Thread size, cross-referenced against the standard’s key measurement points.
Size (M)s (mm)e min (mm)k (mm)b (mm)L Range (mm)
M61011.054.01820–200
M81314.385.32225–200
M101718.906.42630–200
M121921.107.53035–200
M162426.7510.03845–200
M203033.5312.54655–200
M243639.9815.05465–200
M304650.8518.76680–200
M365560.7922.578100–200
M426572.0226.090120–200
M487583.4130.0102140–200
Key Dimension Callouts

d

Nominal thread diameter measured across the major thread.

l

Bolt length measured from bearing face to end.

b

Thread length measured from bolt end toward head.

s

Across-flats width for wrench engagement on hex head.

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DIN 931 Hexagon Head Bolts – Partial Thread – Material Grades & Property Classes

DIN 931 Hexagon Head Bolts – Partial Thread are available across multiple property classes and surface finish options to match load-bearing and corrosion-resistance requirements for General Engineering, Construction and Machinery applications.
Property Classes
4.6 5.6 8.8 10.9 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 DIN 931 Hexagon Head Bolts – Partial Thread?

Nine reasons buyers worldwide rely on us as their DIN 931 Hexagon Head Bolts – Partial Thread manufacturer and export partner.
ISO Certified Production

Every batch of DIN 931 Hexagon Head Bolts – Partial Thread 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 931 Hexagon Head Bolts – Partial Thread shipment.

48-hr Dispatch on Stock Items

Commonly stocked DIN 931 Hexagon Head Bolts – Partial Thread 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 931 Hexagon Head Bolts – Partial Thread to buyers in over 50 countries worldwide.

Custom Sizes & Lengths

Non-standard DIN 931 Hexagon Head Bolts – Partial Thread lengths, diameters and special thread pitches are produced to order to match your drawing requirements.

Competitive Factory Pricing

Direct-from-factory pricing on DIN 931 Hexagon Head Bolts – Partial Thread 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 931 Hexagon Head Bolts – Partial Thread are performed in our in-house laboratory before every release.

Consolidated Multi-Standard Shipping

Combine DIN 931 Hexagon Head Bolts – Partial Thread 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 931 Hexagon Head Bolts – Partial Thread export order.

DIN 931 Hexagon Head Bolts – Partial Thread – Applications & End Uses

DIN 931 Hexagon Head Bolts – Partial Thread are widely specified across multiple industries. Select an industry below to see how our DIN 931 hex bolts are applied.
DIN 931 Hexagon Head Bolts – Partial Thread are used in general engineering for critical fastening applications where dimensional accuracy and mechanical performance are essential. Grade 4.6 is most commonly specified for general engineering environments.
In construction, DIN 931 Hexagon Head Bolts – Partial Thread are valued for consistent dimensions and reliable load-bearing capability. We supply with full test documentation to support quality audits and project inspections.
DIN 931 Hexagon Head Bolts – Partial Thread are used in machinery assemblies where precise torque control and consistent fit are critical. We supply to OEM manufacturers and contractors with custom packaging formats.
For wind energy applications, DIN 931 Hexagon Head Bolts – Partial Thread are supplied with material test reports, dimensional inspection certificates and PPAP documentation where required.
DIN 931 Hexagon Head Bolts – Partial Thread for rail & infrastructure use are selected from stainless steel or coated grades to provide appropriate corrosion resistance while maintaining specified mechanical performance.
In general engineering applications, DIN 931 Hexagon Head Bolts – Partial Thread are fastened into assemblies requiring long-term reliability. Our export-packaged DIN 931 hex bolts arrive protected from transit corrosion with full documentation.

Request a Quote for DIN 931 Hexagon Head Bolts – Partial Thread

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 931

Common questions from buyers sourcing DIN 931 Hexagon Head Bolts – Partial Thread, covering sizes, grades, documentation and lead times.
We supply DIN 931 Hexagon Head Bolts – Partial Thread from M4 to M100 in Coarse & Fine thread. Standard lengths are stocked; non-standard lengths are produced to order. Contact us with your exact requirements for availability confirmation.
DIN 931 Hexagon Head Bolts – Partial Thread are supplied in 4.6 / 5.6 / 8.8 / 10.9 / 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 DIN 931 Hexagon Head Bolts – Partial Thread 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 931 Hexagon Head Bolts – Partial Thread 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
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  • Nagpur
  • Nashik
  • Navi Mumbai
  • Noida
  • Pune
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Countries We Export To:

  • US
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  • Mexico
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  • Qatar
  • Oman
  • Kuwait
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  • South Africa
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