A heat-treated chromium-molybdenum steel generally used for high temperature service (up to 1050°F) and corrosion resistance. Has identical hardness requirements as 2H Nuts.
| Material | Grade 3 |
|---|---|
| Coating | |
| Diameter | 1", 1-1/2", 1-1/4", 1-1/8", 1-3/4", 1-3/8", 1-5/8", 1-7/8", 1/2", 1/4", 2", 2-1/2", 2-1/4", 2-3/4", 3", 3-1/2", 3-1/4", 3-3/4", 3/4", 3/8", 4", 4-1/2", 5/16", 5/8", 7/16", 7/8", 9/16" |
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