Standard: ANSI B 18.8
Available sizes: 1.4 to 4 (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| 1.4 | 1.6 | 0.2 | 0.48 | 1.55 | 3 | 2.6 | 0.04 |
| 1.6 | 2.5 | 0.3 | 0.75 | 2.425 | 4.6 | 4.2 | 0.05 |
| 2 | 4 | 0.5 | 1.2 | 3.9 | 7.25 | 6.75 | 0.07 |
| 2.5 | 6 | 0.8 | 1.8 | 5.9 | 10.8 | 10.2 | 0.07 |
| 3 | 10 | 0.8 | 3 | 9.85 | 16 | 14.9 | 0.08 |
| 4 | 12 | 0.8 | 3.6 | 11.8 | 19 | 17.7 | 0.1 |
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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