Product Description
1/4" UNF Grade 5 zinc plated steel hexagon head bolts with shank.
These Unified National Fine high tensile bolts feature a plain shank with a threaded section and are suitable for use with matching 1/4" UNF nuts or tapped holes. Grade 5 is broadly equivalent to metric 8.8 strength class, making them suitable for imperial engineering, machinery, automotive, restoration and maintenance applications.
- 1/4" UNF Unified National Fine thread
- High tensile Grade 5 steel, metric equivalent 8.8
- Zinc plated finish for general corrosion resistance
- Hexagon head bolt pattern with plain shank
- 28 TPI thread pitch
- 7/16" A/F hexagon head size
- 5/32" head height
- Available in lengths from 1" to 5 1/2"

| A | B | C | D | E | F | G |
| 1/4" | 1 1/2" | 3/4" | 7/16" | 5/32" | 28 | 3/4" |
| 1/4" | 1" | 3/4" | 7/16" | 5/32" | 28 | 1/4" |
| 1/4" | 2 1/2" | 3/4" | 7/16" | 5/32" | 28 | 1 3/4" |
| 1/4" | 2" | 3/4" | 7/16" | 5/32" | 28 | 1 1/4" |
| 1/4" | 3 1/2" | 3/4" | 7/16" | 5/32" | 28 | 2 3/4" |
| 1/4" | 3" | 3/4" | 7/16" | 5/32" | 28 | 2 1/4" |
| 1/4" | 4 1/2" | 3/4" | 7/16" | 5/32" | 28 | 3 3/4" |
| 1/4" | 4" | 3/4" | 7/16" | 5/32" | 28 | 3 1/4" |
| 1/4" | 5 1/2" | 3/4" | 7/16" | 5/32" | 28 | 4 3/4" |
| 1/4" | 1 3/4 | 7/8" | 7/16" | 5/32" | 28 | 7/8" |
| 1/4 | 2 1/4" | 3/4" | 7/16" | 5/32" | 28 | 1 1/2" |
Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.