Description
Overview
DIN555 defines the dimensional requirements for thin hex nuts, ensuring consistent interchangeability and reliable performance.
This selected size is specified with thread M30.
Sold in multiples of '25 pieces. 1 Box = '25 pieces.
Material, Grade & Strength
The material and grade should be selected according to the application, clamp load, corrosion exposure and mating components.
Finish & Corrosion Protection
Hot dip galvanising provides a thick zinc coating for outdoor service.
Typical Uses
Commonly used in machinery, fabrication, maintenance, construction and general engineering applications.
Technical Tips
- Select compatible mating components.
- Use the correct installation method for this fastener type.
- Match material and finish to the service environment.
Dimensions – DIN 555 / ISO 4034 M30
| Standard | DIN 555 / ISO 4034 |
|---|---|
| Product | Hexagon nut, product grade C |
| Thread | M30 x 3.5 |
| Across flats (s) | 46 mm |
| Height (m) | 24 mm |
| Weight (calculated) | 224.06 kg per 1 000 pieces |
Material, Grade & Strength
| Material | Mild steel (grade 4.6/4.8) |
|---|---|
| Nut property class | 5 (6 for DIN 985 nyloc) (ISO 898-2) |
| Use with bolts of class | 4.6, 4.8 and 5.8 |
Finish & Corrosion Protection
Hot dip galvanised: Molten zinc coating, typically 40-55 um (ISO 10684). For outdoor, structural and agricultural use; nuts are tapped oversize to suit galvanised bolts, so use HDG nuts with HDG bolts.
DIN 555 data sheet – all sizes
| Size | Thread | Across flats (s) | Height (m) |
|---|---|---|---|
| M3 | M3 x 0.5 | 5.5 mm | 2.4 mm |
| M4 | M4 x 0.7 | 7 mm | 3.2 mm |
| M5 | M5 x 0.8 | 8 mm | 4 mm |
| M6 | M6 x 1 | 10 mm | 5 mm |
| M7 | M7 x 1 | 11 mm | 5.5 mm |
| M8 | M8 x 1.25 | 13 mm | 6.5 mm |
| M10 | M10 x 1.5 | 17 mm (ISO: 16 mm) | 8 mm |
| M12 | M12 x 1.75 | 19 mm (ISO: 18 mm) | 10 mm |
| M14 | M14 x 2 | 22 mm (ISO: 21 mm) | 11 mm |
| M16 | M16 x 2 | 24 mm | 13 mm |
| M18 | M18 x 2.5 | 27 mm | 15 mm |
| M20 | M20 x 2.5 | 30 mm | 16 mm |
| M22 | M22 x 2.5 | 32 mm (ISO: 34 mm) | 18 mm |
| M24 | M24 x 3 | 36 mm | 19 mm |
| M27 | M27 x 3 | 41 mm | 22 mm |
| M30 | M30 x 3.5 | 46 mm | 24 mm |
| M33 | M33 x 3.5 | 50 mm | 26 mm |
| M36 | M36 x 4 | 55 mm | 29 mm |
| M39 | M39 x 4 | 60 mm | 31 mm |
| M42 | M42 x 4.5 | 65 mm | 34 mm |
| M45 | M45 x 4.5 | 70 mm | 36 mm |
| M48 | M48 x 5 | 75 mm | 38 mm |
| M52 | M52 x 5 | 80 mm | 42 mm |
| M56 | M56 x 5.5 | 85 mm | 45 mm |
| M60 | M60 x 5.5 | 90 mm | 48 mm |
| M64 | M64 x 6 | 95 mm | 51 mm |
Nominal dimensions per DIN 555 / ISO 4034. 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 | M30 |
| Drive Type | External Hex |
| Head Style | Hex |
| Material | Mild Steel |
| Finish | Hot Dip Galvanized |
| Grade | Grade 5 |
| Standards Met | DIN 555, SABS - ISO 1461 |
| Package Quantity | 25 |
| Package Type | Box |