Standard: ANSI B 18.13
Available sizes: M2.5 to M5 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M2.5 | 0.50 | 2.50 | 2.89 | 5.09 | 4.85 | 2.84 | 2.69 | 5.32 | 3.00 | 0.92 | 5.50 |
| M3 | 0.80 | 4.00 | 4.86 | 7.92 | 7.66 | 4.67 | 4.52 |
| 8.27 |
| 5.00 |
| 1.33 |
| 8.50 |
| M4 | 1.25 | 6.00 | 7.83 | 12.33 | 12.00 | 7.36 | 5.75 | 12.70 | 8.00 | 1.97 | 13.00 |
| M5 | 1.75 | 10.00 | 11.79 | 17.05 | 16.64 | 11.33 | 11.08 | 17.63 | 12.00 | 2.36 | 18.00 |
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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