Standard: ANSI B 18.13 - 1996
Available sizes: 10# to 8# (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10# | 0.7500 | 0.625 | 0.740 | 1.106 | 1.089 | 0.722 | 0.713 | 1.107 | 0.750 | 0.188 | 1.125 |
| 2# | 0.0990 | 0.078 | 0.095 | 0.158 | 0.147 | 0.091 | 0.086 |
| 0.154 |
| 0.099 |
| 0.030 |
| 0.161 |
| 3# | 0.1250 | 0.094 | 0.121 | 0.206 | 0.193 | 0.118 | 0.113 | 0.198 | 0.125 | 0.040 | 0.205 |
| 4# | 0.1640 | 0.141 | 0.159 | 0.257 | 0.243 | 0.155 | 0.149 | 0.262 | 0.164 | 0.047 | 0.270 |
| 5# | 0.2500 | 0.188 | 0.244 | 0.370 | 0.354 | 0.236 | 0.230 | 0.365 | 0.250 | 0.062 | 0.375 |
| 6# | 0.3750 | 0.312 | 0.368 | 0.557 | 0.541 | 0.361 | 0.353 | 0.550 | 0.375 | 0.094 | 0.562 |
| 8# | 0.5000 | 0.375 | 0.492 | 0.740 | 0.723 | 0.482 | 0.473 | 0.735 | 0.500 | 0.125 | 0.750 |
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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