Standard: ASME B 18.31
Available sizes: M10 to M8 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 2 | 14.77 | 15.57 | 44 | 57 | 23.35 | 24.65 | 16 | 15.73 | 38 | 4 |
| M12 | 3 | 22.13 | 23.48 | 60 | 73 | 35.2 | 36.8 |
| 24 |
| 23.67 |
| 54 |
| 6 |
| M14 | 3.5 | — | 29.48 | 72 | 85 | 43.75 | 46.25 | 30 | — | 66 | 7 |
| M6 | 1.25 | 7.26 | 7.64 | 24 | — | 11.45 | 12.55 | 8 | 7.78 | 18 | 2.5 |
| M8 | 1.75 | 10.95 | 11.57 | 36 | 49 | 17.45 | 18.55 | 12 | 11.73 | 30 | 3.5 |
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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