Standard: GOST R 52644 - 2006
Available sizes: (M18) to M24 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M18) | 2.5 | 1.6 | 26 | 15 | 15.35 | 22 | 36 | 11 | 39.6 | 35 | 14.65 |
| (M22) | 4 | 2 | 41 | 23 | 23.42 | 36 | 60 |
| 18 |
| 60.8 |
| 58.8 |
| 22.58 |
| M16 | 2.5 | 1.2 | 21 | 13 | 13.35 | 18 | 30 | 9 | 33.3 | 29 | 12.65 |
| M20 | 3 | 1.6 | 31 | 19 | 19.42 | 27 | 46 | 14 | 50.9 | 45 | 18.58 |
| M24 | 5 | 2 | 53 | 30 | 30.42 | 48 | 75 | 24 | 83.4 | 73.1 | 29.58 |
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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