Available sizes: 2# to 8# (4 sizes)
| Size | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 2# | F4 | F | 0.188 | 2 | 40 | 0.090 | 0.172 | 0.175 | 0.171 | ≥0.091 |
| 4# | F4 | F | 0.312 | 2 | 32 | 0.090 | 0.290 | 0.293 | 0.289 | ≥0.091 |
| 6# | F4 | F |
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.
| 0.375 |
| 4 |
| 20 |
| 0.151 |
| 0.344 |
| 0.347 |
| 0.343 |
| 0.156~0.187 |
| 8# | F4 | F | 0.375 | 5 | 20 | 0.182 | 0.344 | 0.347 | 0.343 | ≥0.187 |
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