Standard: CNS 4568 - 1981
Available sizes: M10 to M8 (7 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| M10 | 2 | 25 | 10.5 | 38 | 44 | 30 | 1 | 57 | 16 |
| M12 | 3 | 37 | 15 | 54 | 60 | 43 | 1.6 | 73 | 24 |
| M16 | 4 | 55 | 23 | 78 | 84 |
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.
| 66 |
| 2 |
| 97 |
| 36 |
| M20 | 5 | 72 | 30 | 102 | 108 | 88 | 2 | 121 | 48 |
| M24 | 6 | 95 | 40 | / | 130 | 115 | 3 | 143 | 64 |
| M30 | 6 | 115 | 50 | / | 172 | 140 | 4 | 185 | 80 |
| M8 | 1.5 | 15 | 7 | 26 | 32 | 21 | 0.5 | 45 | 10 |
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