Description and Translation of DIN 934 Fasteners
DIN 934 fasteners, a fundamental German industrial standard, function as essential hexagonal nuts widely used in mechanical engineering, automotive manufacturing, and structural assemblies. Their primary role is to form secure threaded connections with bolts or studs, transmitting axial clamping forces to maintain joint integrity under static and dynamic loads. These nuts ensure reliable component fastening while enabling controlled disassembly for maintenance and repair operations.
In terms of materials, DIN 934 fasteners are predominantly manufactured from carbon steel (e.g., property class 8 per DIN EN ISO 898-2) and alloy steel, providing excellent load-bearing capacity and mechanical stability. For corrosion-resistant applications, stainless steel variants (e.g., A2-70, A4-80 conforming to DIN EN ISO 3506) are specified to ensure durability in humid, chemical, or outdoor environments.
Surface treatments include zinc plating with chromate passivation for enhanced rust resistance, hot-dip galvanizing for robust corrosion protection in harsh conditions, and phosphate coating to improve thread lubrication during assembly. These treatments effectively extend service life and optimize performance across diverse operating environments.
Key characteristics of DIN 934 fasteners include standardized metric coarse threads, full hexagonal profiles with chamfered edges, and precise dimensional tolerances ensuring interchangeability across global markets. Their mechanical attributes feature specified proof loads (minimum 600 MPa for class 8), appropriate hardness values, and uniform thread geometry. Additionally, they exhibit consistent torque-clamping force relationships and reliable locking performance when paired with compatible bolts, making them indispensable in industrial fastening applications worldwide.
| Thread Size d | M1 | M1.2 | M1.4 | M1.6 | (M1.7) | M2 | (M2.3) | M2.5 | (M2.6) | M3 | (M3.5) | M4 | M5 | M6 | (M7) | M8 | ||||
| P | Pitch | Coarse thread | 0.25 | 0.25 | 0.3 | 0.35 | 0.35 | 0.4 | 0.45 | 0.45 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1 | 1.25 | ||
| Fine thread-1 | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | 1 | ||||
| Fine thread-2 | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | ||||
| m | max=nominal size | 0.8 | 1 | 1.2 | 1.3 | 1.4 | 1.6 | 1.8 | 2 | 2 | 2.4 | 2.8 | 3.2 | 4 | 5 | 5.5 | 6.5 | |||
| min | 0.55 | 0.75 | 0.95 | 1.05 | 1.15 | 1.35 | 1.55 | 1.75 | 1.75 | 2.15 | 2.55 | 2.9 | 3.7 | 4.7 | 5.2 | 6.14 | ||||
| mw | min | 0.44 | 0.6 | 0.76 | 0.84 | 0.92 | 1.08 | 1.24 | 1.4 | 1.4 | 1.72 | 2.04 | 2.32 | 2.96 | 3.76 | 4.16 | 4.91 | |||
| s | max=nominal size | 2.5 | 3 | 3 | 3.2 | 3.5 | 4 | 4.5 | 5 | 5 | 5.5 | 6 | 7 | 8 | 10 | 11 | 13 | |||
| min | 2.4 | 2.9 | 2.9 | 3.02 | 3.38 | 3.82 | 4.32 | 4.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | ||||
| e ① | min | 2.71 | 3.28 | 3.28 | 3.41 | 3.82 | 4.32 | 4.88 | 5.45 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 | 11.05 | 12.12 | 14.38 | |||
| * | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||||
| per 1000 units ≈ kg | 0.03 | 0.054 | 0.063 | 0.076 | 0.1 | 0.142 | 0.2 | 0.28 | 0.72 | 0.384 | 0.514 | 0.81 | 1.23 | 2.5 | 3.12 | 5.2 | ||||
Description and Translation of DIN 934 Fasteners
DIN 934 fasteners, a fundamental German industrial standard, function as essential hexagonal nuts widely used in mechanical engineering, automotive manufacturing, and structural assemblies. Their primary role is to form secure threaded connections with bolts or studs, transmitting axial clamping forces to maintain joint integrity under static and dynamic loads. These nuts ensure reliable component fastening while enabling controlled disassembly for maintenance and repair operations.
In terms of materials, DIN 934 fasteners are predominantly manufactured from carbon steel (e.g., property class 8 per DIN EN ISO 898-2) and alloy steel, providing excellent load-bearing capacity and mechanical stability. For corrosion-resistant applications, stainless steel variants (e.g., A2-70, A4-80 conforming to DIN EN ISO 3506) are specified to ensure durability in humid, chemical, or outdoor environments.
Surface treatments include zinc plating with chromate passivation for enhanced rust resistance, hot-dip galvanizing for robust corrosion protection in harsh conditions, and phosphate coating to improve thread lubrication during assembly. These treatments effectively extend service life and optimize performance across diverse operating environments.
Key characteristics of DIN 934 fasteners include standardized metric coarse threads, full hexagonal profiles with chamfered edges, and precise dimensional tolerances ensuring interchangeability across global markets. Their mechanical attributes feature specified proof loads (minimum 600 MPa for class 8), appropriate hardness values, and uniform thread geometry. Additionally, they exhibit consistent torque-clamping force relationships and reliable locking performance when paired with compatible bolts, making them indispensable in industrial fastening applications worldwide.
| Thread Size d | M1 | M1.2 | M1.4 | M1.6 | (M1.7) | M2 | (M2.3) | M2.5 | (M2.6) | M3 | (M3.5) | M4 | M5 | M6 | (M7) | M8 | ||||
| P | Pitch | Coarse thread | 0.25 | 0.25 | 0.3 | 0.35 | 0.35 | 0.4 | 0.45 | 0.45 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1 | 1.25 | ||
| Fine thread-1 | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | 1 | ||||
| Fine thread-2 | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | ||||
| m | max=nominal size | 0.8 | 1 | 1.2 | 1.3 | 1.4 | 1.6 | 1.8 | 2 | 2 | 2.4 | 2.8 | 3.2 | 4 | 5 | 5.5 | 6.5 | |||
| min | 0.55 | 0.75 | 0.95 | 1.05 | 1.15 | 1.35 | 1.55 | 1.75 | 1.75 | 2.15 | 2.55 | 2.9 | 3.7 | 4.7 | 5.2 | 6.14 | ||||
| mw | min | 0.44 | 0.6 | 0.76 | 0.84 | 0.92 | 1.08 | 1.24 | 1.4 | 1.4 | 1.72 | 2.04 | 2.32 | 2.96 | 3.76 | 4.16 | 4.91 | |||
| s | max=nominal size | 2.5 | 3 | 3 | 3.2 | 3.5 | 4 | 4.5 | 5 | 5 | 5.5 | 6 | 7 | 8 | 10 | 11 | 13 | |||
| min | 2.4 | 2.9 | 2.9 | 3.02 | 3.38 | 3.82 | 4.32 | 4.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | ||||
| e ① | min | 2.71 | 3.28 | 3.28 | 3.41 | 3.82 | 4.32 | 4.88 | 5.45 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 | 11.05 | 12.12 | 14.38 | |||
| * | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||||
| per 1000 units ≈ kg | 0.03 | 0.054 | 0.063 | 0.076 | 0.1 | 0.142 | 0.2 | 0.28 | 0.72 | 0.384 | 0.514 | 0.81 | 1.23 | 2.5 | 3.12 | 5.2 | ||||
