Standard: BS 4183
Available sizes: (M2.2) to M3 (6 sizes)
| Size | P | k_max | s_max | s_min | k_nominal |
|---|---|---|---|---|---|
| (M2.2) | 6 | 1.75 | 5.82 | 6.9 | 2 |
| (M3.5) | 17 | 4.7 | 16.73 | 19.6 | 5 |
| M1.6 | 4 | 0.95 | 3.82 | 4.6 | 1.2 |
| M2 | 5 | 1.35 | 4.82 | 5.8 | 1.6 |
| M2.5 | 8 | 2.25 |
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.
| 7.78 |
| 9.2 |
| 2.5 |
| M3 | 13 | 3.7 | 12.73 | 15 | 4 |
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