Standard: ASME B 18.6
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# | 5/16 | 0.358 | 0.358 | 0.556 | 0.155 | 0.3750 | 12 | 80° | 4 | 0.597 | 82° |
| 4# | 4 | 0.122 | 0.122 | 0.191 | 0.060 | 0.1250 | 20 |
| 80° |
| 1 |
| 0.212 |
| 82° |
| 5# | 5 | 0.148 | 0.148 | 0.215 | 0.068 | 0.1380 | 20 | 80° | 2 | 0.237 | 82° |
| 6# | 8 | 0.192 | 0.192 | 0.285 | 0.069 | 0.2160 | 14 | 80° | 2 | 0.312 | 82° |
| 8# | 12 | 0.262 | 0.262 | 0.380 | 0.075 | 0.3125 | 12 | 80° | 3 | 0.412 | 82° |
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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