Standard: IS 2232 - 1967
Available sizes: (M7) to M8 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M7) | 2 | 3.2 | 21.67 | 11 | 10.3 | 1.5 | 16 | 3.8 | 22 | 15.57 | 3.5 |
| M4 | 0.8 | 1.2 | 7.85 | 4 | 3.52 | / | 6 | 1.65 | 8 | 5.7 | 1.4 |
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.
| M5 |
| 1 |
| 1.6 |
| 10.73 |
| 5.5 |
| 5.02 |
| / |
| 8 |
| 2.25 |
| 11 |
| 7.64 |
| 2 |
| M6 | 1.5 | 2.5 | 16.73 | 8 | 7.42 | 1.25 | 12 | 3.05 | 17 | 11.57 | 2.8 |
| M8 | 2 | 4 | 23.67 | 13 | 12.3 | 1.5 | 19 | 4.8 | 24 | 18.48 | 4.5 |
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