Standard: KS B 1040 - 1998
Available sizes: M5 to M8 (3 sizes)
| Size | P | e | r | k_max | k_min | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| M5 | 1 | 1.9 | 1.5 | 3.85 | 10 | 4 | 11.5 | 11.5 | 4.15 | 9.8 |
| M6 | 1.5 | 3 | 2.5 | 6.8 | 17 | 7 | 17.5 | 18 | 7.2 | 16.75 |
| M8 | 1.75 | 3.6 | 3 | 7.8 | 19 | 8 | 20.5 | 21 | 8.2 | 18.65 |
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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