Standard: ANSI B 18.29
Available sizes: 1# to 6# (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1# | 56 | 3 | 0.011 | 0.111 | 0.062 | 0.11 | 0.119 | 0.071 | 0.025 | 0.103 | 0.085 |
| 2# | 40 | 2-3/4 | 0.013 | 0.159 | 0.07 | 0.144 | 0.159 |
| 0.043 |
| 0.027 |
| 0.144 |
| 0.105 |
| 3# | 32 | 2-3/4 | 0.017 | 0.193 | 0.091 | 0.178 | 0.193 | 0.055 | 0.031 | 0.178 | 0.135 |
| 4# | 24 | 2-7/8 | 0.022 | 0.259 | 0.138 | 0.244 | 0.259 | 0.071 | 0.04 | 0.244 | 0.183 |
| 5# | 20 | 3-3/8 | 0.031 | 0.33 | 0.182 | 0.31 | 0.33 | 0.094 | 0.057 | 0.31 | 0.238 |
| 6# | 16 | 4-3/8 | 0.032 | 0.472 | 0.269 | 0.452 | 0.472 | 0.149 | 0.1 | 0.445 | 0.354 |
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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