Standard: BS 450 - 1958
Available sizes: 1/8 to 7/32 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/8 | 0.1875 | 0.071 | 0.042 | 0.328 | 0.307 | 24 | 32 | 0.040 | 0.050 | 0.356 | 0.084 |
| 3/16 | 0.2500 | 0.095 | 0.051 | 0.438 | 0.412 | 20 | 26 |
| 0.051 |
| 0.061 |
| 0.475 |
| 0.113 |
| 7/32 | 0.3750 | 0.144 | 0.072 | 0.656 | 0.624 | 16 | 20 | 0.080 | 0.082 | 0.712 | 0.169 |
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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