Standard: ASME B 18.8
Available sizes: 1/4 to 5/32 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 0.500 | 0.54 | 0.30 | 0.514 | 0.25 | 0.498 | 0.493 | 0.76 | 0.32 | 0.520 | 0.79 |
| 3/16 | 0.312 | 0.34 | 0.19 | 0.320 | 0.16 | 0.310 | 0.305 | 0.48 | 0.21 | 0.326 | 0.51 |
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.
| 5/32 | 0.187 | 0.22 | 0.11 | 0.195 | 0.09 | 0.186 | 0.182 | 0.28 | 0.13 | 0.201 | 0.30 |
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