Standard: JB 999 - 1977
Available sizes: (M20) to M22 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M20) | 22 | 1.2 | 47.3 | 41 | 40.66 | 14 | 4 | 19 | 21 | 12 | 17 |
| M10 | 8 | 0.8 | 21.9 | 19 | 18.72 | 7 | 2 | — |
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.
| 14 |
| 7 |
| 11 |
| M14 | 12 | 0.8 | 31.2 | 27 | 26.72 | 10 | 2 | — | 17 | 8 | 16 |
| M18 | 16 | 1 | 36.9 | 32 | 31.66 | 13 | 2 | — | 19 | 9 | 19 |
| M22 | 31 | 1.5 | 69.3 | 60 | 59.6 | 20 | 4 | 28 | 25 | 18 | 24 |
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