Standard: GOST 13463 - 1977
Available sizes: 3 to 8 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 4.3 | 6.24 | 6 | 5 | 4.7 | 7 | 4 | 14.35 | 13.65 | 3.7 | 14 |
| 4 | 6.4 | 9.29 | 9 | 7.5 | 7.14 | 10 | 6 | 18.35 | 17.65 | 5.7 | 18 |
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.
| 5 |
| 10.5 |
| 13.35 |
| 13 |
| 10 |
| 9.64 |
| 17 |
| 10 |
| 22.42 |
| 21.58 |
| 9.64 |
| 22 |
| 6 | 15 | 17.35 | 17 | 12 | 11.57 | 22 | 12 | 28.42 | 27.58 | 11.57 | 28 |
| 8 | 17 | 20.42 | 20 | 15 | 14.57 | 24 | 15 | 32.5 | 31.5 | 14.57 | 32 |
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