M4 Steel Flange Nut, Class 8
M4 hex flange nut, ISO 898-2 property class 8, manufactured to DIN 6923 / ISO 4161 with an integral washer flange. Carbon steel — distributes clamp load without a separate washer; specify zinc plating in your quote if corrosion protection is required.
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Applications & Usage
M4 class 8 flange nuts are the standard match for class 8.8 bolts in machinery and plant equipment.
Technical Specifications
| Specification | Value |
|---|---|
| Dimensions | M4 |
| Material | Steel |
| Alloy/Grade | ISO 898-2 class 8 |
| Standard | DIN 6923 / ISO 4161 |
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Technical guides
Bolt grades and sizes: 8.8, 10.9, 12.9, A2 and A4, and metric hex bolt dimensions
What the property classes 4.8, 8.8, 10.9 and 12.9 and stainless A2-70 and A4-70 mean, minimum strength and tensile loads, metric thread pitch and hex head sizes, DIN 933 vs DIN 931, and which nut goes with which bolt.
Read the guide →Nut and washer types compared: hex, lock, flange, castle, coupling, cap and HV nuts, flat, spring and structural washers, with their standards
How hex, thin, nylon-insert and all-metal lock, flange, castle, coupling, cap, wing and HV nuts differ, which nut class goes with which bolt, and when to use DIN 125, DIN 127, DIN 7989 and DIN 6916 washers.
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