Standard: DIN 931
Available sizes: (M68) to M90 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M68) | 6 | 45 | 116.16 | 1 | 79 | 156 | 169 | 71.26 | 97.7 | 0.4 | 72 |
| (M76) | 6 | 63 | 161.02 | 2 | 107 | — | 225 |
| 99.13 |
| 135.4 |
| 0.4 |
| 100 |
| M72 | 6 | 50 | 127.46 | 2 | 87 | 172 | 185 | 79.26 | 106.9 | 0.4 | 88 |
| M80 | 6 | 79 | 200.57 | 2 | 132 | — | 275 | 124 | 168.6 | 0.4 | 125 |
| M90 | 6 | 100 | 254.7 | 2 | 167 | — | 345 | 159 | 214.1 | 0.4 | 160 |
Standard corrosion protection for indoor and mild outdoor environments.
Salt spray: 96–200 hours | RoHS compliant (trivalent chromium)
High-performance coating for automotive, marine, and harsh environments.
Salt spray: 720–1500 hours | Recommended for grade 8.8+
Heavy-duty protection for structural and outdoor applications.
Salt spray: 500–1000 hours | Thread tolerance adjustment required
Note for high-strength fasteners (Grade 10.9, 12.9): Electroplating processes require hydrogen embrittlement relief baking (minimum 4 hours at 200°C within 4 hours of plating). Contact our engineering team for grade-specific plating recommendations.
Request detailed technical specifications, material certifications, and availability information for your application requirements. Our engineering team can provide product recommendations, custom specifications, and technical documentation.
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