Standard: IS 6760 - 1972
Available sizes: 0 to 4 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 1.78 | 0.41 | 0.53 | 3.56 | 3.43 | 1.85 | 1.7 | 0.71 | 0.61 | 0.91 | 1.02 |
| 1 | 2.39 | 0.51 | 0.59 | 4.78 | 4.52 | 2.46 | 2.29 |
| 0.97 |
| 0.86 |
| 1.06 |
| 1.32 |
| 2 | 3.1 | 0.69 | 0.91 | 6.2 | 5.94 | 3.23 | 2.97 | 1.14 | 0.99 | 1.27 | 1.75 |
| 3 | 3.81 | 0.84 | 1.14 | 7.62 | 7.34 | 3.94 | 3.68 | 1.27 | 1.11 | 1.59 | 2.16 |
| 4 | 4.17 | 0.89 | 1.22 | 8.34 | 8.03 | 4.29 | 4.04 | 1.4 | 1.24 | 1.81 | 2.34 |
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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