Available sizes: 1/4 to 8# (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 1 | FHS | FH | 7.8 | 3 | / | 8.2 | 6 | 6.08 | 8.6 | 1.6 |
| 10# | 0.7 | FHS | FH | 5.5 | 2.4 | / | 5.9 | 4 | 4.08 | 6.3 | 1 |
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.
| 2# |
| / |
| FHS |
| FH |
| 0.161 |
| 0.085 |
| 40 |
| 0.176 |
| 0.111 |
| 0.114 |
| 0.191 |
| 0.040 |
| 4# | / | FHS | FH | 0.222 | 0.090 | 32 | 0.237 | 0.163 | 0.166 | 0.252 | 0.040 |
| 5/16 | 1.25 | FHS | FH | 9.2 | 3.7 | / | 9.6 | 8 | 8.08 | 10 | 2.4 |
| 6# | / | FHS | FH | 0.241 | 0.100 | 32 | 0.256 | 0.189 | 0.192 | 0.271 | 0.040 |
| 8# | / | FHS | FH | 0.361 | 0.160 | 18 | 0.376 | 0.311 | 0.314 | 0.391 | 0.093 |
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