Standard: BS 4190
Available sizes: M10 to M8 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 2.5 | 0.8 | 1.78 | 29.16 | 34.6 | 20.84 | 19.16 | 13.35 | 12.65 | 30 | 32.95 |
| M12 | 3 | 0.8 | 1.78 | 35 | 41.6 | 24.84 | 23.16 |
| 15.35 |
| 14.65 |
| 36 |
| 39.55 |
| M16 | 3.5 | 1 | 2.28 | 45 | 53.1 | 30.84 | 29.16 | 19.42 | 18.58 | 46 | 50.85 |
| M20 | 3.5 | 1 | 2.28 | 49 | 57.7 | 34 | 32 | 21.42 | 20.58 | 50 | 55.37 |
| M6 | 1.25 | 0.4 | 0.8 | 12.57 | 15 | 8.58 | 7.42 | 5.74 | 5.26 | 13 | 14.2 |
| M8 | 1.75 | 0.6 | 1.25 | 18.48 | 21.9 | 12.7 | 11.3 | 8.29 | 7.71 | 19 | 20.88 |
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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