Standard: GOST 7796
Available sizes: (14) to 8 (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (14) | 2.5 | 4.48 | 4 | 14 | 33 | 1.5 | 22 | 0.2 | 0.8 | 30 | 27.7 |
| (18) | 4 | 5.48 | 5 | 22.5 | 55.4 | 3 | 36 |
| 0.2 |
| 0.8 |
| 50 |
| 46.6 |
| 10 | 2 | 3.68 | 3.2 | 8.8 | 20.9 | 1.5 | 14 | 0.15 | 0.6 | 19 | 17.2 |
| 12 | 2.5 | 4.48 | 4 | 12 | 26.2 | 1.5 | 18 | 0.2 | 0.8 | 24 | 22 |
| 16 | 3 | 4.48 | 4 | 17 | 39.6 | 2 | 27 | 0.2 | 0.8 | 36 | 33.2 |
| 20 | 5 | 5.48 | 5 | 30 | 76.9 | 3 | 48 | 0.25 | 0.8 | 70 | 64.7 |
| 8 | 1.5 | 2.9 | 2.5 | 6.4 | 15.3 | 1.25 | 10 | 0.15 | 0.6 | 14 | 12.5 |
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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