Standard: GOST 7811
Available sizes: (M14) to M8 (8 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M14) | 3 | 0.8 | 0.2 | 12 | 32 | 2 | 24 | 35.7 | 30 | 23.67 | 15 |
| (M18) | 4.5 | 0.8 | 0.25 | 21 | 60 | 3 | 42 |
| 67 |
| 56.3 |
| 41.61 |
| 26 |
| M10 | 2 | 0.8 | 0.2 | 8 | 22 | 1.5 | 16 | 24.5 | 20.6 | 15.73 | 10 |
| M12 | 2.5 | 0.8 | 0.2 | 10 | 27 | 1.5 | 20 | 30.1 | 25.3 | 19.67 | 12.5 |
| M16 | 3.5 | 0.8 | 0.2 | 15 | 41 | 2 | 30 | 45.6 | 38.4 | 29.67 | 18.7 |
| M20 | 5 | 0.8 | 0.25 | 24 | 70 | 3 | 48 | 78.3 | 65.8 | 47.61 | 30 |
| M6 | 1.25 | 0.6 | 0.15 | 4 | 12 | 1 | 8 | 13.2 | 10.6 | 7.78 | 5.3 |
| M8 | 1.75 | 0.6 | 0.15 | 6 | 17 | 1.25 | 12 | 18.9 | 15.6 | 11.73 | 7.5 |
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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