Standard: ASME B 18.2
Available sizes: M12 to M22 (5 sizes)
| Standard Body | Standard Number |
|---|---|
| ISO | ISO 4775 |
| ANSI | ANSI/ASME B 18.2.4.6M |
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| M12 | 2 | 22.0 | 26.17 | 14.3 | 24.00 | 23.16 | 0.8 | 0.4 | 27.71 | 13.6 |
| M14 | 2.5 | 31.4 | 37.29 | 20.7 | 34.00 | 33.00 | 0.8 | 0.4 | 39.26 | 19.4 |
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.
| M16 | 3 | 38.0 | 45.20 | 24.2 | 41.00 | 40.00 | 0.8 | 0.4 | 47.34 | 22.9 |
| M20 | 3.5 | 45.6 | 55.37 | 30.7 | 50.00 | 49.00 | 0.8 | 0.4 | 57.74 | 29.1 |
| M22 | 4 | 55.9 | 66.44 | 36.6 | 60.00 | 58.80 | 0.8 | 0.4 | 69.28 | 35.0 |
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