Standard: IS 6649
Available sizes: (M22) to M24 (4 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal |
|---|---|---|---|---|---|---|
| (M22) | 33 | 3.4 | 4.6 | 33.62 | 58.1 | 60 |
| M16 | 22 | 3.1 | 4.6 | 22.52 | 40.4 | 42 |
| M20 | 26 | 3.4 | 4.6 | 26.52 | 48.4 | 50 |
| M24 | 39 | 3.4 | 4.6 |
| 39.62 |
| 70.1 |
| 72 |
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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