ASTM A563 Grade A Nuts Suppliers, Manufacturers
We Manufacture Hex Nuts as per ASTM A563 Grade A. These Nuts are produced from Low Carbon Steel. We Stock & Supply these A563 Grade A nuts in Standard & Heavy Hex Form. We can supply these nuts various sizes.
ASTM Grade A Nut Grades
| A | Low carbon steel, hex or heavy hex |
|---|---|
| B | Low carbon steel, hex or heavy hex |
| C | Carbon steel, quenched and tempered, heavy hex |
| D | Carbon steel, quenched and tempered, heavy hex |
| DH | Carbon steel, quenched and tempered, heavy hex |
| C3 | Weathering steel, quenched and tempered, heavy hex |
| DH3 | Weathering steel, quenched and tempered, heavy hex |
Markings & Grade Idenficiation for ASTM A563 Grade A Nuts
| Grade Identification Marking | Specification | Material | Nominal Size, In. | Proof Load Stress, ksi | Hardness Rockwell | See Note | |
|---|---|---|---|---|---|---|---|
| Min | Max | ||||||
 Blank |
ASTM A563 Grade O | Carbon Steel | 1/4 - 1-1/2 | 69 | B55 | C32 | 2,3 |
| ASTM A563 Grade A | Carbon Steel | 1/4 - 1-1/2 | 90 | B68 | C32 | 2,3 | |
| ASTM A563 Grade B | Carbon Steel | 1/4 - 1 | 120 | B69 | C32 | 2,3 | |
| >1 - 1-1/2 | 105 | ||||||
ASTM Grade A Coating's |
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