Description
Overview
DIN601 defines the standard dimensions for hexagon head bolts, ensuring interchangeability and reliable engineering performance.
This selected size is specified with diameter M16, length 400 mm, thread M16, pitch 2 mm.
Sold in multiples of '1 pieces. 1 Box = '1 pieces.
Material, Grade & Strength
Select the material and grade to suit the application and service environment.
Finish & Corrosion Protection
Plain finish is intended for protected indoor applications.
Typical Uses
Used in machinery, fabrication, mining, agriculture, maintenance and general engineering.
Technical Tips
- Use matching mating components.
- Follow recognised torque specifications.
- Select the correct material and finish for the operating environment.
Dimensions – DIN 601 / ISO 4016 M16 x 400
| Standard | DIN 601 / ISO 4016 |
|---|---|
| Product | Hexagon head bolt, product grade C |
| Thread | M16 x 2 |
| Length (l) | 400 mm |
| Across flats (s) | 24 mm |
| Head height (k) | 10 mm |
| Thread length (b) | 57 mm (ref.) |
| Stress area (As) | 156.7 mm² |
| Weight (calculated) | 655.68 kg per 1 000 pieces |
Material, Grade & Strength
| Material | Mild steel (grade 4.6/4.8) |
|---|---|
| Property class | 4.6 / 4.8 (mild steel) |
| Tensile strength Rm (min) | 400 / 420 MPa |
| Yield strength (min) | 240 / 340 MPa |
| Proof load stress | 225 / 310 MPa |
| Matching nut | property class 5 (ISO 898-2) |
Finish & Corrosion Protection
Plain / self colour: No applied coating. Stainless, brass and nylon parts are supplied plain; plain steel parts need oil, paint or protected environments.
DIN 601 data sheet – all sizes
| Size | Thread | Across flats (s) | Head height (k) | Thread length (b) | Stress area (As) |
|---|---|---|---|---|---|
| M3 | M3 x 0.5 | 5.5 mm | 2 mm | 12 mm (ref.) | 5.0 mm² |
| M4 | M4 x 0.7 | 7 mm | 2.8 mm | 14 mm (ref.) | 8.8 mm² |
| M5 | M5 x 0.8 | 8 mm | 3.5 mm | 16 mm (ref.) | 14.2 mm² |
| M6 | M6 x 1 | 10 mm | 4 mm | 18 mm (ref.) | 20.1 mm² |
| M7 | M7 x 1 | 11 mm | 4.8 mm | 20 mm (ref.) | 28.9 mm² |
| M8 | M8 x 1.25 | 13 mm | 5.5 mm | 22 mm (ref.) | 36.6 mm² |
| M10 | M10 x 1.5 | 17 mm (ISO: 16 mm) | 7 mm | 26 mm (ref.) | 58.0 mm² |
| M12 | M12 x 1.75 | 19 mm (ISO: 18 mm) | 8 mm | 30 mm (ref.) | 84.3 mm² |
| M14 | M14 x 2 | 22 mm (ISO: 21 mm) | 9 mm | 40 mm (ref.) | 115.4 mm² |
| M16 | M16 x 2 | 24 mm | 10 mm | 44 mm (ref.) | 156.7 mm² |
| M18 | M18 x 2.5 | 27 mm | 12 mm | 48 mm (ref.) | 192.5 mm² |
| M20 | M20 x 2.5 | 30 mm | 13 mm | 52 mm (ref.) | 244.8 mm² |
| M22 | M22 x 2.5 | 32 mm (ISO: 34 mm) | 14 mm | 69 mm (ref.) | 303.4 mm² |
| M24 | M24 x 3 | 36 mm | 15 mm | 73 mm (ref.) | 352.5 mm² |
| M27 | M27 x 3 | 41 mm | 17 mm | 79 mm (ref.) | 459.4 mm² |
| M30 | M30 x 3.5 | 46 mm | 19 mm | 85 mm (ref.) | 560.6 mm² |
| M33 | M33 x 3.5 | 50 mm | 21 mm | 91 mm (ref.) | 693.6 mm² |
| M36 | M36 x 4 | 55 mm | 23 mm | 97 mm (ref.) | 816.7 mm² |
| M39 | M39 x 4 | 60 mm | 25 mm | 103 mm (ref.) | 975.8 mm² |
| M42 | M42 x 4.5 | 65 mm | 26 mm | 109 mm (ref.) | 1120.9 mm² |
| M45 | M45 x 4.5 | 70 mm | 28 mm | 115 mm (ref.) | 1306.0 mm² |
| M48 | M48 x 5 | 75 mm | 30 mm | 121 mm (ref.) | 1473.1 mm² |
| M52 | M52 x 5 | 80 mm | 33 mm | 129 mm (ref.) | 1757.8 mm² |
| M56 | M56 x 5.5 | 85 mm | 35 mm | 137 mm (ref.) | 2030.0 mm² |
| M60 | M60 x 5.5 | 90 mm | 38 mm | 145 mm (ref.) | 2362.0 mm² |
| M64 | M64 x 6 | 95 mm | 40 mm | 153 mm (ref.) | 2676.0 mm² |
Nominal dimensions per DIN 601 / ISO 4016. Weights are calculated from nominal dimensions and are a guide only (±10%). Values for fit and strength should be confirmed against the standard for critical applications.
Specifications
| Measurement Type | Metric |
|---|---|
| Thread Size | M16 |
| Thread Pitch | 2 mm |
| Thread Style | Partial Thread |
| Drive Size | 24 mm |
| Drive Type | External Hex |
| Head Style | Hex |
| Diameter | M16 |
| Length | 400 mm |
| Material | Mild Steel |
| Finish | Plain |
| Grade | Grade 4.6 |
| Standards Met | DIN 601 |
| Package Quantity | 1 |
| Package Type | Box |