Standard: ASME B 18.6
Available sizes: 3# to 8# (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3# | 40 | 0.33 | 0.17 | 0.41 | 0.28 | 48 | 0.72 | 0.07 | 0.21 | 0.59 | 0.11 |
| 4# | 40 | 0.43 | 0.22 | 0.47 | 0.34 | 44 | 0.91 | 0.10 | 0.27 | 0.78 | 0.14 |
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.
| 5# | 32 | 0.50 | 0.26 | 0.57 | 0.43 | 36 | 1.10 | 0.14 | 0.33 | 0.97 | 0.18 |
| 6# | 24 | 0.58 | 0.32 | 0.66 | 0.53 | 28 | 1.25 | 0.17 | 0.39 | 1.12 | 0.21 |
| 8# | 20 | 0.58 | 0.32 | 0.66 | 0.53 | 28 | 1.25 | 0.17 | 0.39 | 1.12 | 0.21 |
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