Standard: GOST 17474 - 1980
Available sizes: 2 to 4 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 0.45 | 1.6 | 1.9 | 0.6 | 5.4 | / | 4.7 | 3 | 1.6 | 1.5 | 1 |
| 2.5 | 0.6 | 2 | 2.5 | 0.9 | 6.8 | / | 6.5 |
| 4.4 |
| 2.2 |
| 1.93 |
| 2 |
| 3 | 0.8 | 2.9 | 3.4 | 1.25 | 9.4 | / | 9.2 | 5.4 | 3.1 | 2.5 | 2 |
| 3.5 | 1.25 | 5 | 5.5 | 2 | 15 | 1 | 14.5 | 8.7 | 5 | 4 | 3 |
| 4 | 1.75 | 7.8 | 8.3 | 3 | 22.5 | 1.25 | 21.5 | 12.6 | 7.5 | 6 | 4 |
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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