NUTS come in several dimensions. NUBOTECK nuts are based on the geometry defined in ASME B18.2.2. and the threading as per ASME B1.1. Depending on the customer's specifications, nuts may either have both sides chamfered or have one side as washer-faced.
| Grade | Size | Completed Nuts | Sample Nut after Heat-treat | |||
| Brinell Hardness | Rockwell Hardness, C Scale |
Rockwell Hardness, B Scale |
Brinell Hardness, min |
Rockwell Hardness, B Scale, min |
||
| 2H | Through 1 ½" | 248 to 327 | 24 to 35 | -- | 179 | 89 |
| 2H | Over 1 ½" | 212 to 327 | 35 max | 95 min | 147 | 79 |
| 2HM | All | 159 to 235 | -- | 84 to 99 | 159 | 84 |
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