Standard: GB /T 902.2
Available sizes: M10 to M8 (4 sizes)
| Standard Body | Standard Number |
|---|---|
| GB | GB /T 902.2(PD) |
| ISO | ISO 13918(PD) |
| Size | P | k_max | s_max | s_min | k_nominal |
|---|---|---|---|---|---|
| M10 | 2.5 | L+ 4.3 | 18.38 | 24.5 | 7 |
| M12 | 3 | L+ 5.1 | 22.05 | 30 | 10 |
| M6 |
| 1.25 |
| L+ 2.4 |
| 7.19 |
| 10 |
| 3.5 |
| M8 | 1.75 | L+ 3.1 | 10.86 | 15.5 | 4.5 |
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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