Standard: BS 7419 - 1991
Available sizes: M16 to M36 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M16 | 2.5 | 10 | 29.16 | 19.16 | 12.5 | 127.5 | 120 | 13.4 | 30 | 20.84 | 11.6 |
| M20 | 3.5 | 15 | 45 | 29.16 | 18.7 | 140.5 | 130 |
| 19.75 |
| 46 |
| 30.84 |
| 17.65 |
| M24 | 4.5 | 21 | 63.1 | 41 | 26 | 155.5 | 142 | 27.05 | 65 | 43 | 24.95 |
| M30 | 5.5 | 28 | 82.8 | 54.8 | 35 | 172.5 | 156 | 36.25 | 85 | 57.2 | 33.75 |
| M36 | 6 | 32 | 92.8 | 62.8 | 40 | 182 | 164 | 41.25 | 95 | 65.2 | 38.75 |
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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