ALNd — UNC Class A4 (Double-Slotted All-Metal Lock Nuts)
Stainless steel A4-80 prevailing-torque nuts per ISO 2320 for high-corrosion environments. Electro-polished with wax coat for consistent torque and re-use.
- Material grade: Stainless Steel A4-80 (AISI 316L), per ISO 3506-2.
- Finish: Electro polishing + wax coat.
- Performance: Prevailing-torque compliant with ISO 2320; proof load per ISO 898-2.
- Compliance: RoHS conformant.
| Part Number | d | Pitch (TPI) | S / inch | h / inch | m / inch |
|---|---|---|---|---|---|
| ALNd0440A4 | n 4 | 40 | 0,188 | 0,175 | 0,087 |
| ALNd0632A4 | n 6 | 32 | 0,250 | 0,215 | 0,107 |
| ALNd0832A4 | n 8 | 32 | 0,312 | 0,275 | 0,137 |
| ALNd420A4 | 1/4 | 20 | 0,437 | 0,340 | 0,182 |
| ALNd518A4 | 5/16 | 18 | 0,500 | 0,410 | 0,232 |
| ALNd616A4 | 3/8 | 16 | 0,562 | 0,490 | 0,292 |
| ALNd714A4 | 7/16 | 14 | 0,687 | 0,570 | 0,357 |
| ALNd813A4 | 1/2 | 13 | 0,750 | 0,660 | 0,420 |
| ALNd912A4 | 9/16 | 12 | 0,872 | 0,725 | 0,483 |
| ALNd1011A4 | 5/8 | 11 | 0,937 | 0,810 | 0,545 |
| ALNd1210A4 | 3/4 | 10 | 1,125 | 0,975 | 0,670 |
| ALNd1409A4 | 7/8 | 9 | 1,312 | 1,051 | 0,703 |
| ALNd1608A4 | 1 | 8 | 1,500 | 1,185 | 0,792 |
| ALNd1807A4 | 1 1/8 | 7 | 1,687 | 1,358 | 0,870 |
| ALNd2007A4 | 1 1/4 | 7 | 1,875 | 1,498 | 0,960 |
| ALNd2206A4 | 1 3/8 | 6 | 2,062 | 1,646 | 1,055 |
| ALNd2406A4 | 1 1/2 | 6 | 2,250 | 1,799 | 1,150 |
| ALNd2805A4 | 1 3/4 | 5 | 2,625 | 2,101 | 1,365 |
| ALNd32045A4 | 2 | 4 1/2 | 3,000 | 2,226 | 1,425 |
| ALNd36045A4 | 2 1/4 | 4 1/2 | 3,375 | 2,340 | 1,510 |
| ALNd4004A4 | 2 1/2 | 4 | 3,750 | 2,550 | 1,685 |
| ALNd4404A4 | 2 3/4 | 4 | 4,125 | 2,845 | 1,930 |
| ALNd4804A4 | 3 | 4 | 4,500 | 3,062 | 2,150 |
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Available on request: alternative finishes and additional sizes.
For safety-critical applications, confirm specification, torque range, and material with engineering.