Standard: GOST 7805
Available sizes: (M3.5) to M4 (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| (M3.5) | 1.5 | 6.4 | 17.8 | 1.25 | 10 | 0.15 | 0.6 | 16 | 14.6 |
| M1.6 | 0.4 | 1.4 | 4.3 | / | 2 | / | / | 4 | 3.1 |
| M2 |
| 0.5 |
| 2 |
| 6 |
| / |
| 3 |
| 0.15 |
| 0.4 |
| 5.5 |
| 4.6 |
| M2.5 | 0.7 | 2.8 | 7.7 | / | 4 | 0.15 | 0.4 | 7 | 5.9 |
| M3 | 1 | 4 | 11.1 | / | 6 | 0.15 | 0.5 | 10 | 8.9 |
| M4 | 1.75 | 7.5 | 20 | 1.25 | 12 | 0.15 | 0.6 | 18 | 16.6 |
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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