Technical Data Sheet

max = maximum; min = minimum
Active drawing
Hex Socket Cap Screws
Use legacy DIN 912 or current ISO 4762 geometry as the starting point for a custom socket head cap screw. Specify head diameter and height, hex-socket width and depth, thread and body lengths, material, property class, finish, tolerances and inspection requirements for compact machine joints and drawing-controlled assemblies.
Use this DIN 912 drawing generator to configure dimensions, review the technical drawing and export a custom drawing for manufacturing. Whether the specification is written as DIN 912 or DIN912, this online drawing tool covers the same Hex Socket Cap Screws standard reference.
DIN 912 is the legacy designation and ISO 4762 / DIN EN ISO 4762 is the modern standards route for the same basic screw form. For a standard-based order, retain one selected edition and its dimensional limits. If the head, socket, thread length, body, tolerances or drive details are changed, manufacture and inspection will follow the approved custom drawing.

max = maximum; min = minimum
Unit: mm
| Dimension | P | dk/max | dk/min | da/max | e/min | k/max | k/min | r/min | s/min | s/max | t/min |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M1.4 | 0.3 | 2.6 | 2.46 | 1.8 | 1.5 | 1.4 | 1.26 | 0.1 | 1.32 | 1.36 | 0.6 |
| M1.6 | 0.35 | 3 | 2.86 | 2 | 1.73 | 1.6 | 1.46 | 0.1 | 1.52 | 1.56 | 0.7 |
| M2 | 0.4 | 3.8 | 3.62 | 2.6 | 1.73 | 2.0 | 1.86 | 0.1 | 1.52 | 1.56 | 1 |
| M2.5 | 0.45 | 4.5 | 4.32 | 3.1 | 2.3 | 2.5 | 2.36 | 0.1 | 2.02 | 2.06 | 1.1 |
| M3 | 0.5 | 5.5 | 5.32 | 3.6 | 2.87 | 3.0 | 2.86 | 0.1 | 2.52 | 2.58 | 1.3 |
| M4 | 0.7 | 7 | 6.78 | 4.7 | 3.44 | 4.0 | 3.82 | 0.2 | 3.02 | 3.08 | 2 |
| M5 | 0.8 | 8.5 | 8.28 | 5.7 | 4.58 | 5.0 | 4.82 | 0.2 | 4.02 | 4.095 | 2.5 |
| M6 | 1 | 10 | 9.78 | 6.8 | 5.72 | 6.0 | 5.70 | 0.25 | 5.02 | 5.14 | 3 |
| M8 | 1|1.25 | 13 | 12.73 | 9.2 | 6.86 | 8.0 | 7.64 | 0.4 | 6.02 | 6.14 | 4 |
| M10 | 1|1.25|1.5 | 16 | 15.73 | 11.2 | 9.15 | 10 | 9.64 | 0.4 | 8.025 | 8.175 | 5 |
| M12 | 1.25|1.5|1.75 | 18 | 17.73 | 13.7 | 11.43 | 12 | 11.57 | 0.6 | 10.025 | 10.175 | 6 |
| M14 | 1.5|2 | 21 | 20.67 | 15.7 | 13.72 | 14 | 13.57 | 0.6 | 12.032 | 12.212 | 7 |
| M16 | 1.5|2 | 24 | 23.67 | 17.7 | 16 | 16 | 15.57 | 0.6 | 14.032 | 14.212 | 8 |
| M18 | 1.5|2|2.5 | 27 | 26.67 | 20.2 | 16 | 18 | 17.57 | 0.6 | 14.032 | 14.212 | 9 |
| M20 | 1.5|2|2.5 | 30 | 29.67 | 22.4 | 19.44 | 20 | 19.48 | 0.8 | 17.05 | 17.23 | 10 |
| M22 | 1.5|2|2.5 | 33 | 32.61 | 24.4 | 19.44 | 22 | 21.48 | 0.8 | 17.05 | 17.23 | 11 |
| M24 | 2|3 | 36 | 35.61 | 26.4 | 21.73 | 24 | 23.48 | 0.8 | 19.065 | 19.275 | 12 |
| M27 | 2|3 | 40 | 39.61 | 30.4 | 21.73 | 27 | 26.48 | 1.0 | 19.065 | 19.275 | 13.5 |
| M30 | 2|3.5 | 45 | 44.61 | 33.4 | 25.15 | 30 | 29.48 | 1.0 | 22.065 | 22.275 | 15.5 |
| M33 | 2|3.5 | 50 | 49.61 | 36.4 | 27.43 | 33 | 32.38 | 1.0 | 24.065 | 24.275 | 18 |
| M36 | 3|4 | 54 | 53.54 | 39.4 | 30.85 | 36 | 35.38 | 1.0 | 27.065 | 27.275 | 19 |
| M42 | 3|4.5 | 63 | 62.54 | 45.5 | 36.57 | 42 | 41.38 | 1.2 | 32.08 | 32.33 | 24 |
| M48 | 3|5 | 72 | 71.54 | 52.6 | 41.13 | 48 | 47.38 | 1.6 | 36.08 | 36.33 | 28 |
| M56 | 4|5.5 | 84 | 83.46 | 63 | 46.83 | 56 | 55.38 | 2.0 | 41.08 | 41.33 | 34 |
| M64 | 4|6 | 96 | 95.46 | 71 | 52.53 | 64 | 63.26 | 2 | 46.08 | 46.33 | 38 |
| M72 | 4|6 | 108 | 107.46 | 79 | 62.81 | 72 | 71.26 | 2 | 55.1 | 55.4 | 43 |
| M80 | 4|6 | 120 | 119.46 | 87 | 74.21 | 80 | 79.26 | 2 | 65.1 | 65.4 | 48 |
| M90 | 4|6 | 135 | 134.37 | 97 | 85.61 | 90 | 89.13 | 2.5 | 75.1 | 75.4 | 54 |
| M100 | 4|6 | 150 | 149.37 | 107 | 97.04 | 100 | 99.13 | 2.5 | 85.12 | 85.47 | 60 |
Catalog fasteners commonly specified with this drawing family. Confirm size, material and property class against your project drawing.
DIN 912 / ISO 4762 / ASTM A57442CrMo / SCM435 / 40Cr / 10.9 / 12.9
High-strength socket head cap screws per ISO 4762 in 42CrMo / SCM435, 10.9 / 12.9 grade.
DIN 912 / ISO 4762 / ASTM F468Ti-6Al-4V / Grade 5
Ti-6Al-4V Grade 5 titanium socket screws per ISO 4762 for lightweight corrosion-critical joints.
DIN 912 / ISO 4762 / ASTM A574SS304 / SS316 / A2-70 / A4-80
A2 / A4 stainless socket head cap screws per ISO 4762 for precision renewable equipment assemblies.
ISO 7042 / DIN 980 / ISO 2320Carbon Steel / Alloy Steel / Grade 8 / 10
All-metal prevailing torque nuts per ISO 7042 / DIN 980 for vibration-resistant joints.
DIN 25201Carbon Steel / 8.8 / 10.9 Compatible
DIN 25201 wedge lock washers for anti-loosening structural and machinery joints.
DIN 209350CrV4 / —
Disc Spring Washers per DIN 2093 in 50CrV4, — grade.
Send the completed drawing with the selected DIN 912 or ISO 4762 geometry, thread, length, material, property class, finish, quantity, socket requirements and inspection documents for engineering review and quotation.
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