Standard: ANSI B 18.1
Available sizes: 1/16 to 7/32 (7 sizes)
| Size | P | k_max | s_max | s_min | k_nominal |
|---|---|---|---|---|---|
| 1/16 | 0.096 | 0.040 | 0.090 | 0.176 | 0.163 |
| 1/4 | 0.443 | 0.186 | 0.428 | 0.823 | 0.765 |
| 1/8 | 0.222 | 0.094 | 0.213 | 0.413 | 0.384 |
| 3/16 | 0.348 | 0.146 | 0.336 | 0.646 | 0.602 |
| 3/32 |
| 0.158 |
| 0.066 |
| 0.152 |
| 0.293 |
| 0.272 |
| 5/32 | 0.285 | 0.119 | 0.273 | 0.528 | 0.491 |
| 7/32 | 0.411 | 0.172 | 0.396 | 0.763 | 0.710 |
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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