Hex Head Screws are the widely used industrial fasteners, characterized by their six-sided head designed for high-torque applications using a wrench or socket. Engineered to meet rigorous international standards such as DIN 933, ISO 4017, and ASME B18.2.1, these screws provide exceptional structural stability in heavy machinery, construction, and automotive assemblies. Available in a comprehensive range of grades including Stainless Steel, Carbon Steel, and High-Nickel Alloys, our Hex Head Screws ensure superior corrosion resistance and long-lasting performance in both high-temperature and high-pressure environments.
Detailed Specifications
Size
Length
Type of Threads
Threads Configuration
Type of Manufacturing
Raw Material Origin
Surface Coating
Heat Treatment Details
Certifications
Additional Certifications
Additional Requirements
Mandatory Requirements
Available Inconel Grades & Standards
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Inconel Alloy 600 Standard: ASTM B166
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Inconel Alloy 601 Standard: ASTM B168
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Inconel Alloy 625 Standard: DIN 17752
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Inconel Alloy 718 Standard: ASTM F2281
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Inconel Alloy X750 Standard: ASME SB637
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Inconel Alloy 617 Standard: ASME SB166
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Inconel Alloy 690 Standard: ASTM B564-15
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Inconel Alloy 800 Standard: ASTM B408
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Inconel Alloy 825 Standard: ASTM B425
Dimensions Chart (DIN 933 / ISO 4017)
| Nominal Size (d) | Pitch (P) | Head Height (k) | Width Across Flats (s) | Width Across Corners (e) |
|---|---|---|---|---|
| M4 | 0.7 | 2.8 | 7 | 7.66 |
| M5 | 0.8 | 3.5 | 8 | 8.79 |
| M6 | 1.0 | 4.0 | 10 | 11.05 |
| M8 | 1.25 | 5.3 | 13 | 14.38 |
| M10 | 1.5 | 6.4 | 17 | 18.90 |
| M12 | 1.75 | 7.5 | 19 | 21.10 |
| M16 | 2.0 | 10.0 | 24 | 26.75 |
| M20 | 2.5 | 12.5 | 30 | 33.53 |
| M24 | 3.0 | 15.0 | 36 | 39.98 |
| M30 | 3.5 | 18.7 | 46 | 50.85 |
| M36 | 4.0 | 22.5 | 55 | 60.79 |
Chemical Composition (Inconel Grades)
| Grade | Ni (Nickel) | Cr (Chromium) | Fe (Iron) | Mo (Molybdenum) | Nb (Niobium) | Co (Cobalt) | Other Elements |
|---|---|---|---|---|---|---|---|
| Inconel 600 | 72.0% Min | 14.0 - 17.0% | 6.0 - 10.0% | - | - | - | Mn 1.0%, C 0.15% |
| Inconel 601 | 58.0 - 63.0% | 21.0 - 25.0% | Balance | - | - | - | Al 1.0 - 1.7% |
| Inconel 625 | 58.0% Min | 20.0 - 23.0% | 5.0% Max | 8.0 - 10.0% | 3.15 - 4.15% | 1.0% Max | Ti 0.4%, Al 0.4% |
| Inconel 718 | 50.0 - 55.0% | 17.0 - 21.0% | Balance | 2.8 - 3.3% | 4.75 - 5.5% | 1.0% Max | Ti 0.65 - 1.15% |
| Inconel X-750 | 70.0% Min | 14.0 - 17.0% | 5.0 - 9.0% | - | 0.7 - 1.2% | 1.0% Max | Ti 2.25 - 2.75%, Al 0.4 - 1.0% |
| Inconel 800 | 30.0 - 35.0% | 19.0 - 23.0% | 39.5% Min | - | - | - | Al 0.15 - 0.60%, Ti 0.15 - 0.60% |
| Inconel 825 | 38.0 - 46.0% | 19.5 - 23.5% | 22.0% Min | 2.5 - 3.5% | - | - | Cu 1.5 - 3.0%, Ti 0.6 - 1.2% |
Mechanical Properties (Inconel Grades)
| Grade | Tensile Strength (MPa / N/mm²) Min |
Yield Strength (MPa / N/mm²) Min |
Elongation (%) Min |
Hardness (HRC / HB) |
|---|---|---|---|---|
| Inconel 600 | 550 | 240 | 30% | 65 - 85 HRB |
| Inconel 601 | 550 | 205 | 30% | 60 - 80 HRB |
| Inconel 625 | 827 | 414 | 30% | 145 - 220 HB |
| Inconel 718 | 1275 | 1035 | 12% | 36 - 44 HRC |
| Inconel X-750 | 1100 | 700 | 15% | 30 - 40 HRC |
| Inconel 800 | 520 | 205 | 30% | 75 HRB (Max) |
| Inconel 825 | 586 | 241 | 30% | 135 - 165 HB |
DIN Standards for Bolts
Comprehensive list of dimensional standards for industrial fasteners.
Series 100 - 900
- DIN 186
- DIN 188
- DIN 261
- DIN 444
- DIN 479
- DIN 580
- DIN 601
- DIN 603
- DIN 604
- DIN 605
- DIN 610
- DIN 787
- DIN 797
- DIN 931
- DIN 933
- DIN 933 SZ
Nuts & Precision
- DIN 431
- DIN 439 A/B
- DIN 466
- DIN 467
- DIN 508
- DIN 547
- DIN 548
- DIN 555
- DIN 557
- DIN 562
- DIN 582
- DIN 798
- DIN 917
- DIN 934
- DIN 935
- DIN 936
- DIN 937
Studs & Washers
- DIN 525
- DIN 835
- DIN 938
- DIN 939
- DIN 940
- DIN 976
- DIN 125 A/B
- DIN 126
- DIN 127 A/B
- DIN 433
- DIN 440 R/V
- DIN 6796
- DIN 7980
- DIN 9021
Extended & Heavy Series
DIN 3570
DIN 7968
DIN 7969
DIN 7990
DIN 7992
DIN 70613
DIN 70614
DIN 80705
DIN 6331
DIN 6334
DIN 6915
DIN 6924