Hexagon Head Bolts
ISO 4017 (Full Thread)
Manufacturer, Supplier & Exporter – Super Industries India
(Website-ready | Engineer-focused | Export SEO | ~2000+ words)
1. Introduction to ISO 4017 Hexagon Head Bolts
ISO 4017 Hexagon Head Bolts are among the most widely used fully threaded metric fasteners in industrial assemblies worldwide. Unlike partial-thread bolts, ISO 4017 bolts have threading along the entire shank length, making them ideal for clamping, tension-based joints, and compact assemblies.
At Super Industries India, we manufacture ISO 4017 full-thread hex bolts for domestic and international markets, delivering precision, strength, and customization for engineering-grade applications.
2. What Is ISO 4017?
ISO 4017 is the international standard that specifies:
- Metric hexagon head bolts
- Fully threaded shank
- Metric coarse thread
- Property classes as per ISO 898-1
It is considered the global replacement for DIN 933.
Super Industries
Global Manufacturer of Heavy & Custom Engineered Fasteners & Flanges
3. ISO 4017 vs ISO 4014 (Engineering Comparison)
| Feature | ISO 4017 | ISO 4014 |
|---|---|---|
| Thread | Full thread | Partial thread |
| Shear resistance | Moderate | Higher |
| Clamping ability | Excellent | Very good |
| Compact assemblies | Ideal | Less suitable |
| DIN equivalent | DIN 933 | DIN 931 |
👉 ISO 4017 is preferred where space is limited and full engagement is required.
4. Why Fully Threaded Bolts Matter
Full threads provide:
✔ Maximum engagement in tapped holes
✔ Better adjustment during installation
✔ Uniform load distribution
✔ Ideal for thinner components
This makes ISO 4017 bolts extremely popular in:
- Machinery
- Automotive
- Electrical panels
- OEM equipment
Super Industries
Global Manufacturer of Heavy & Custom Engineered Fasteners & Flanges
5. Dimensional Scope of ISO 4017
ISO 4017 covers bolts from:
- M1.6 to M64 (standard)
- Custom diameters available on request
Key Defined Dimensions
- Nominal diameter (d)
- Thread pitch (P)
- Bolt length (l)
- Head height (k)
- Width across flats (s)
6. ISO 4017 Dimensional Table (Representative)
| Size | Pitch | Head Size (s) | Head Height (k) |
|---|---|---|---|
| M8 | 1.25 | 13 mm | 5.3 mm |
| M10 | 1.5 | 17 mm | 6.4 mm |
| M12 | 1.75 | 19 mm | 7.5 mm |
| M16 | 2.0 | 24 mm | 10 mm |
| M20 | 2.5 | 30 mm | 12.5 mm |
(Complete dimension charts available from Super Industries India)
7. Mechanical Properties – ISO 4017
Mechanical requirements are governed by ISO 898-1.
Common Property Classes
| Class | Tensile Strength | Yield Strength |
|---|---|---|
| 4.6 | 400 MPa | 240 MPa |
| 5.8 | 500 MPa | 400 MPa |
| 8.8 | 800 MPa | 640 MPa |
| 10.9 | 1040 MPa | 940 MPa |
| 12.9 | 1220 MPa | 1100 MPa |
8. Material Options at Super Industries India
ISO 4017 bolts can be manufactured in:
- Carbon steel
- Alloy steel (EN 19, EN 24)
- Stainless steel (A2 / A4)
- Special steels for high-temperature service
9. Heat Treatment & Metallurgy
For high-strength grades (8.8 and above):
✔ Quenching
✔ Tempering
✔ Controlled hardness testing
This ensures:
- Consistent tensile properties
- Resistance to brittle fracture
- Long-term reliability
10. Thread Production Methods
We use:
✔ Thread rolling (preferred)
✔ Thread cutting (for oversized/custom bolts)
Thread rolling advantages:
- Higher fatigue resistance
- Smooth surface finish
- Better dimensional accuracy
11. Surface Finish & Coating Options
Available coatings include:
- Black finish
- Zinc plated (white / yellow / blue)
- Hot dip galvanized
- Mechanical galvanizing
- PTFE / Xylan coatings
12. Corrosion Resistance Selection Guide
| Environment | Recommended Finish |
|---|---|
| Indoor dry | Black / Zinc |
| Outdoor | HDG |
| Marine | Stainless A4 |
| Chemical plants | PTFE coated |
13. Marking & Traceability
Each ISO 4017 bolt is marked with:
✔ Property class
✔ Manufacturer identification (SII)
Example marking:
“8.8 SII”
14. Applications of ISO 4017 Hex Bolts
- Industrial machinery
- Automotive assemblies
- Electrical enclosures
- Pumps & compressors
- General fabrication
15. ISO 4017 in Export Markets
ISO 4017 is accepted globally in:
✔ USA
✔ Europe
✔ Middle East
✔ Africa
✔ Southeast Asia
16. Packaging & Export Readiness
Super Industries India ensures:
✔ Moisture-protected packaging
✔ Palletized shipments
✔ Country-specific labeling
17. Quality Assurance & Testing
- Dimensional inspection
- Tensile testing
- Hardness verification
- Thread gauge checks
18. Certification & Compliance
✔ ISO 9001 manufacturing
✔ EN 10204 3.1 certification
✔ Third-party inspection (on request)
19. ISO 4017 vs DIN 933
| Feature | ISO 4017 | DIN 933 |
|---|---|---|
| Standard | International | German |
| Export acceptance | Global | Limited |
| Preferred for | Modern projects | Legacy specs |
20. Custom ISO 4017 Bolts
We provide:
✔ Non-standard lengths
✔ Special coatings
✔ Bulk OEM supply
✔ Export documentation
21. Why Choose Super Industries India?
✔ In-house production
✔ Engineering expertise
✔ Export-focused quality
✔ Competitive pricing
22. How to Procure ISO 4017 Bolts
Share with us:
1️⃣ Size & length
2️⃣ Grade
3️⃣ Quantity
4️⃣ Surface finish
5️⃣ Destination
23. Conclusion
ISO 4017 hex bolts are essential fastening components for modern engineering and industrial assemblies. Their full-thread design provides maximum engagement and flexibility across a wide range of applications.
With Super Industries India, you gain a trusted partner delivering ISO-compliant, export-ready fasteners tailored to your project needs.
📩 Call to Action
Need ISO 4017 Hex Bolts?
👉 Contact Super Industries India for custom sizes, global shipping, and engineering support.