Standard: ANSI B 27.7
Available sizes: 10 to 9 (8 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 15.75 | 0.64 | 1.15 | 0.96 | 0.84 | 15.9 | 15.5 | 2.8 | 2.1 | 0.9 | 1.2 |
| 11 | 16.65 | 0.92 | 1.25 | 1.16 | 1.04 | 16.8 | 16.4 | 3.45 |
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.
| 2.25 |
| 1.1 |
| 1.3 |
| 4 | 4.55 | 0.029 | 0.4 | 0.46 | 0.34 | 4.6 | 4.45 | 1.4 | 0.65 | 0.4 | 0.6 |
| 5 | 6.35 | 0.1 | 0.6 | 0.66 | 0.54 | 6.4 | 6.2 | 2.05 | 0.9 | 0.6 | 1 |
| 6 | 8.15 | 0.15 | 0.75 | 0.66 | 0.54 | 8.2 | 8 | 2.2 | 1.15 | 0.6 | 1 |
| 7 | 10 | 0.23 | 0.85 | 0.66 | 0.54 | 10.05 | 9.85 | 2.2 | 1.4 | 0.6 | 1 |
| 8 | 11.9 | 0.44 | 0.95 | 0.96 | 0.84 | 12.05 | 11.65 | 2.8 | 1.6 | 0.9 | 1.2 |
| 9 | 13.8 | 0.54 | 1.05 | 0.96 | 0.84 | 13.95 | 13.55 | 2.8 | 1.8 | 0.9 | 1.2 |
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