Standard: GOST 28919 - 1991
Available sizes: 152 to 155 (4 sizes)
| Size | P | k_max | s_max | s_min | k_nominal |
|---|---|---|---|---|---|
| 152 | 100.9 | 0.28 | 11.4 | 11.4 | 1.6 |
| 153 | 148 | 0.65 | 14.2 | 14.2 | 1.6 |
| 154 | 294.5 | 2.9 | 21 | 21 | 3.2 |
| 155 | 426.7 | 6.7 | 25.7 | 25.7 | 3.2 |
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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