Standard: IS 6755 - 1980
Available sizes: 10 to 8 (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| 10 | 30.5 | 7.75 | 8.25 | 31.8 | 46.5 | M30 | 8 | 3 |
| 12 | 36.5 | 9.75 | 10.25 | 37.8 | 56.5 | M36 | 10 | 3 |
| 4 | 5.1 | 1.7 | 1.9 | 5.4 | 8.7 | M5 | 1.8 | 0.8 |
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.
| 5 |
| 8.2 |
| 2.85 |
| 3.15 |
| 8.6 |
| 14.2 |
| M8 |
| 3 |
| 1.2 |
| 6 | 12.2 | 3.8 | 4.2 | 13 | 20.2 | M12 | 4 | 1.6 |
| 8 | 20.2 | 5.8 | 6.2 | 21.2 | 32.2 | M20 | 6 | 2.5 |
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