Standard: BS 3692 - 2001
Available sizes: (M14) to M8 (7 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| (M14) | 3 | 6 | 21.48 | 5.8 | 30 | 29.48 | 41 | 40.38 | 22 | 5.5 |
| M10 | 2.5 | 6 | 15.57 | 4.8 | 22 | 21.48 | 30 | 29.67 | 16 | 4.5 |
| M12 | 3 | 6 |
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.
| 18.48 |
| 5.8 |
| 27 |
| 26.48 |
| 36 |
| 35.38 |
| 19 |
| 5.5 |
| M4 | 0.8 | 6 | 3.7 | 1.65 | 6 | 5.7 | 8 | 7.85 | 4 | 1.4 |
| M5 | 1.25 | 6 | 6.14 | 2.75 | 9.5 | 9.14 | 13 | 12.73 | 6.5 | 2.5 |
| M6 | 1.75 | 6 | 9.64 | 3.8 | 15 | 14.57 | 19 | 18.67 | 10 | 3.5 |
| M8 | 2 | 6 | 12.57 | 4.8 | 19 | 18.48 | 24 | 23.67 | 13 | 4.5 |
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