Standard: ANSI B 18.17 - 1968
Available sizes: 1/4 to 8# (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 0.5000 | 0.15 | 1.00 | 1.09 | 1.03 | 13 | 1.54 | 0.29 | 4.00 | 1.46 | 0.33 |
| 10# | 0.3125 | 0.09 | 0.50 | 0.64 | 0.60 | 18 | 0.96 | 0.14 | 3.00 | 0.91 | 0.17 |
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.
| 12# | 0.4375 | 0.14 | 1.00 | 0.96 | 0.91 | 14 | 1.40 | 0.24 | 4.00 | 1.35 | 0.27 |
| 6# | 0.1640 | 0.04 | 0.38 | 0.32 | 0.30 | 32 | 0.51 | 0.07 | 1.00 | 0.49 | 0.09 |
| 8# | 0.2160 | 0.05 | 0.38 | 0.45 | 0.43 | 24 | 0.71 | 0.09 | 2.00 | 0.67 | 0.11 |
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