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Technical Information > ASTM A563 Nut Compatibility Chart
ASTM A563 Nut Compatibility Chart
Download a print version| Grade of Bolt | Surface Finish | Nominal Size Inches | A563 Grade and ANSI Nut Style | |||
|---|---|---|---|---|---|---|
| Recommended | Suitable | |||||
| Hex | Heavy Hex |
Hex | Heavy Hex |
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| Any | ¼ to 1½ | A |
B,D,DH |
A,B,C,D,DH,DH3 |
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| >1½ to 2 | A |
A |
C,D,DH,DH3 |
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| >2 to 4 | A |
C,D,DH,DH3 |
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| Any | ¼ to 1½ | A |
B,D,DH |
A,B,C,D,DH,DH3 |
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| >1½ to 2 | A |
A |
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| >2 to 4 | A |
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| Plain | ½ - 1½ | C |
C3,D,DH,DH3 |
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| Galvanized | ½ - 1½ | DH |
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| Plain | ½ - 1½ | C3 |
DH3 |
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| Plain | ¼ to 1½ | C |
D,DH |
C3,D,DH,DH3 |
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| >1½ to 4 | C |
C3,D,DH,DH3 |
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| Galvanized | ¼ to 1½ | DH |
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| >1½ to 4 | DH |
|||||
| Plain | ¼ to 1½ | DH |
DH |
D,DH,DH3 |
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| >1½ to 4 | DH |
DH3 |
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| Plain | ¼ to 1½ | B |
D,DH |
B,C,C3,D,DH,DH3 |
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| >1½ to 3 | A |
C,C3,D,DH,DH3 |
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| Galvanized | ¼ to 1½ | DH |
D,DH |
D |
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| >1½ to 3 | DH |
D |
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| Plain | ½ - 1½ | DH |
DH3 |
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| Plain | ½ - 1½ | DH3 |
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A687 |
Plain | ⅝ - 3 | D |
DH,DH3 |
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| Galvanized | ⅝ - 3 | DH |
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| Any | ¼ to 1½ | A |
B,D,DH |
A,B,C,D,DH,DH3 |
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| >1½ to 4 | A |
C,D,DH,DH3 |
||||
| Plain | ¼ to 1½ | A |
B,D,DH |
A,B,C,D,DH,DH3 |
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| >1½ to 4 | A |
C,D,DH,DH3 |
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| Galvanized | ¼ to 4 | A |
C,D,DH,DH3 |
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| Plain | ¼ to 1½ | D |
DH,DH3 |
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| >1½ to 3 | DH |
DH3 |
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| Galvanized | ¼ to 3 | DH |
DH3 |
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1. The availability of A563 grade DH nuts in nominal sizes 3/4" and larger is very limited and generally available only on special orders of 50,000 or more. For smaller quantities, ASTM A194 grade 2H should be considered.