Standard: ANSI B 18.6
Available sizes: (3#) to 8# (7 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| (3#) | 0.245 | 2 | 0.146 | 0.231 | 0.089 | 0.050 | 0.079 | 0.068 |
| 10# | 0.987 | 4 | 0.412 | 0.958 | 0.348 | 0.228 | 0.327 | 0.246 |
| 2# | 0.193 | 1 | 0.104 | 0.180 | 0.071 |
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.
| 0.052 |
| 0.062 |
| 0.062 |
| 4# | 0.322 | 2 | 0.169 | 0306 | 0.115 | 0.074 | 0.105 | 0.092 |
| 5# | 0.425 | 3 | 0.246 | 0.407 | 0.151 | 0.099 | 0.139 | 0.117 |
| 6# | 0.615 | 4 | 0.333 | 0.594 | 0.218 | 0.146 | 0.203 | 0.164 |
| 8# | 0.863 | 4 | 0.392 | 0.838 | 0.304 | 0.206 | 0.286 | 0.224 |
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