F1554 Recommended Hardware
| Grade | Identification | Size Inches | Recommended A563 Nut | Washer | |||
|---|---|---|---|---|---|---|---|
| Plain Finish | Hot-Dip or Mechanical Zinc Coated | ||||||
| Grade | Style | Grade | Style | ||||
| 36 | ![]() |
1⁄2 – 11⁄2 | A | Hex | A | Hex | F436 |
| 15⁄8 – 4 | A | Heavy Hex | A | Heavy Hex | |||
| 55 | ![]() |
1⁄2 – 11⁄2 | A | Hex | A | Heavy Hex | F436 |
| 15⁄8 – 4 | A | Heavy Hex | A | Heavy Hex | |||
| 105 | ![]() |
1⁄2 – 11⁄2 | D1 | Heavy Hex | DH2 | Heavy Hex | F436 |
| 15⁄8 – 3 | DH2 | Heavy Hex | DH2 | Heavy Hex | |||
|
1 A563 grade D nuts are rarely available. A563 grade DH or A194 grade 2H should be substituted. |
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