Standard: ANSI B 18.6
Available sizes: 0# to 4# (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0# | 28 | 0.054 | 0.086 | 0.123 | 0.043 | 0.077 | 0.066 | 0.052 | 0.097 | 0.146 | 0.068 |
| 1# | 24 | 0.079 | 0.127 | 0.171 | 0.059 | 0.103 | 0.092 |
| 0.073 |
| 0.139 |
| 0.199 |
| 0.092 |
| 2# | 20 | 0.101 | 0.162 | 0.220 | 0.075 | 0.129 | 0.118 | 0.095 | 0.176 | 0.252 | 0.116 |
| 3# | 16 | 0.125 | 0.198 | 0.268 | 0.091 | 0.155 | 0.144 | 0.116 | 0.213 | 0.305 | 0.140 |
| 4# | 15 | 0.132 | 0.216 | 0.292 | 0.100 | 0.168 | 0.157 | 0.126 | 0.232 | 0.332 | 0.152 |
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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