Standard: ISO 8434
Available sizes: 10 to 8 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 3/4 | 26.2 | 27.5 | 12 UN | 21.15 | 1 1/16' | 24.87 | 27.3 | 27.1 | 25 | 21.28 |
| 12 | 25 | 28.7 | 33.9 | 12 UN | 27.6 | 1 5/16' | 31.22 |
| 33.7 |
| 33.5 |
| 31.35 |
| 27.73 |
| 16 | 32 | 31.2 | 41.8 | 12 UN | 34.15 | 1 5/8' | 39.14 | 41.6 | 41.4 | 39.27 | 34.3 |
| 3/4 | 50 | 44.5 | 64 | 12 UN | 54.95 | 2 1/2' | 61.37 | 63.8 | 63.6 | 61.5 | 55.1 |
| 6 | 8 | 17.3 | 13.2 | 20 UNF | 9.45 | 1/2' | 11.46 | 13 | 12.8 | 11.59 | 9.55 |
| 8 | 12 | 21.6 | 19.6 | 16 UNF | 14.45 | 3/4' | 17.48 | 19.4 | 19.2 | 17.61 | 14.58 |
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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