DIN 934 Hex Nut Specifications
DIN 934 Hex Nuts
ISO Equivalent: ISO 4032 | Full-Height Metric Hex Nuts
DIN 934 defines standard hexagon nuts with full thread engagement height — the most common nut specification for metric fastener assemblies worldwide. These nuts are designed to pair with DIN 933/931 hex bolts and DIN 912 socket cap screws.
Quick Specifications
Dimension Chart
| Size | Pitch (mm) | Wrench Size (s) | Height (m) |
|---|---|---|---|
| M3 | 0.5 | 5.5 mm | 2.4 mm |
| M4 | 0.7 | 7 mm | 3.2 mm |
| M5 | 0.8 | 8 mm | 4.7 mm |
| M6 | 1.0 | 10 mm | 5.2 mm |
| M8 | 1.25 | 13 mm | 6.8 mm |
| M10 | 1.5 | 16 mm | 8.4 mm |
| M12 | 1.75 | 18 mm | 10.8 mm |
| M14 | 2.0 | 21 mm | 12.8 mm |
| M16 | 2.0 | 24 mm | 14.8 mm |
| M20 | 2.5 | 30 mm | 18.0 mm |
| M24 | 3.0 | 36 mm | 21.5 mm |
Material Options
Steel – Class 8
Standard zinc-plated carbon steel. For general-purpose indoor applications with Class 8.8 or 10.9 bolts.
A2 Stainless (304)
Excellent corrosion resistance for outdoor, food-grade, and general industrial use. Non-magnetic.
A4 Stainless (316)
Marine-grade stainless with molybdenum for superior salt spray and chemical resistance.
DIN 934 vs ISO 4032
💡 Are They Interchangeable?
Yes — DIN 934 and ISO 4032 are dimensionally identical and fully interchangeable. Both specify full-height hex nuts with the same wrench sizes, thread specifications, and property class requirements.