Standard: JIS B 1554
Available sizes: 120 to 160 (5 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 120 | AWL26 | 19 | 14 | 125 | 130 | 143 | 2 | 8 | 165 | 12 |
| 130 | AWL30 | 19 | 16 | 145 | 150 | 164 | 2 | 10 | 190 | 14 |
| 140 | AWL34 | 19 |
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.
| 18 |
| 164 |
| 170 |
| 184 |
| 2.5 |
| 10.5 |
| 210 |
| 16 |
| 150 | AWL38 | 19 | 20 | 184 | 190 | 202 | 2.5 | 10.5 | 230 | 18 |
| 160 | AWL40 | 19 | 20 | 194 | 200 | 218 | 2.5 | 10.5 | 250 | 18 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.