Standard: IFI 148
Available sizes: 10# to 8# (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10# | 13 | 0.87 | 0.165 | 0.136 | 0.014 | 0.945 | 0.915 | 0.5 | 0.175 | 0.146 | 0.01 |
| 2# | 48 | 0.215 | 0.035 | 0.026 | 0.006 | 0.250 | 0.230 |
| 0.13 |
| 0.045 |
| 0.036 |
| 0.003 |
| 4# | 32 | 0.305 | 0.055 | 0.042 | 0.008 | 0.350 | 0.330 | 0.19 | 0.065 | 0.052 | 0.005 |
| 6# | 20 | 0.455 | 0.085 | 0.073 | 0.01 | 0.510 | 0.485 | 0.282 | 0.095 | 0.083 | 0.007 |
| 8# | 16 | 0.69 | 0.135 | 0.104 | 0.013 | 0.760 | 0.735 | 0.375 | 0.145 | 0.114 | 0.009 |
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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