Standard: JIS B 8607
Available sizes: 1/2 to 3/8 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 19.05 | 16 | 23.2 | 19.2 | 19.3 | 1-1/16-14UNS | 36 | 24 | 24.8 | 35.4 | 28 |
| 1/4 | 9.52 | 7.8 | 15.2 | 9.7 | 9.8 | 5/8-18UNF | 22 | 16 | 16.8 | 21.4 | 20 |
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.
| 3/8 | 15.88 | 12.5 | 21.2 | 16 | 16.1 | 7/8-14UNF | 29 | 22 | 22.8 | 28.4 | 25 |
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