Standard: Q 353
Available sizes: (M12) to M20 (5 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| (M12) | 1.5 | 3.8 | 4.7 | 23.36 | 21 | 20.67 | 14 | 19.6 | 5 | 15.1 |
| (M14) | 1.5 | 5.14 | 6.42 | 29.56 | 27 | 26.16 | 18 | 24.8 | 7 | 19.5 |
| (M18) | 2 | 7.28 |
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.
| 9.1 |
| 45.2 |
| 41 |
| 40 |
| 27 |
| 38 |
| 10 |
| 29.1 |
| M16 | 1.5 | 5.68 | 7.1 | 37.29 | 34 | 33 | 22 | 31.4 | 8 | 23.6 |
| M20 | 3 | 8.72 | 10.9 | 60.79 | 55 | 53.8 | 36 | 51.1 | 12 | 38.9 |
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