Standard: ASME B 18.6
Available sizes: 4# to 8# (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4# | 0.1250 | 0.082 | 1 | 0.191 | 0.060 | 4 | 0.118 | 0.081 | 0.018 | 0.212 | 0.122 |
| 5# | 0.1380 | 0.075 | 2 | 0.215 | 0.068 | 5 | 0.131 |
| 0.074 |
| 0.027 |
| 0.237 |
| 0.148 |
| 6# | 0.2160 | 0.120 | 2 | 0.285 | 0.069 | 8 | 0.209 | 0.120 | 0.032 | 0.312 | 0.192 |
| 8# | 0.2420 | 0.139 | 3 | 0.380 | 0.112 | 12 | 0.235 | 0.144 | 0.035 | 0.412 | 0.262 |
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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