Product Description
Material: Steel Zinc PlatedThread: BSF (British Standard Fine)
Type: Castle Nuts
Grade - High Tensile Steel grade r (8.8)

| A | B | C | D |
| 1/4" | 7/16" | 0.28" | 26 |
| 5/16" | 17/32" | 0.34" | 22 |
| 3/8" | 9/16" | 0.39" | 20 |
| 7/16" | 5/8" | 0.51" | 18 |
| 1/2" | 13/16" | 0.57" | 16 |
| 5/8" | 1" | 0.76" | 14 |
| 3/4" | 1 1/8" | 0.92" | 12 |
Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.