Product Description
1/2" UNF grade 5 zinc plated hex head bolts with shank for high tensile fastening applications requiring a partially threaded bolt. Manufactured from high tensile steel with a bright zinc plated finish, these hex head bolts are suitable for automotive, machinery, engineering and general workshop use.
These bolts feature Unified National Fine (UNF) thread and an unthreaded shank, making them ideal for applications where improved alignment or shear performance is required. Available in imperial lengths from 1 1/2" to 6 1/2", with multiple pack quantities for trade, workshop and bulk use.
Please select the required length and pack quantity from the dropdown options. Specifications are intended as a guide only, so if dimensions are critical it is best to check before ordering.
Thread Size: 1/2" UNF
Material: High Tensile Steel
Grade: Grade 5 (8.8)
Finish: Bright Zinc Plated
Head Type: Hex Head
Thread Type: Unified National Fine (UNF)
Style: Bolt With Unthreaded Shank
| A | B | C | D | E | F | G |
| 1/2" | 1 1/2" | 1 1/4" | 3/4" | 5/16" | 20 | 1/4" |
| 1/2" | 1 3/4" | 1 1/4" | 3/4" | 5/16" | 20 | 1/2" |
| 1/2" | 1" | 1/4" | 3/4" | 5/16" | 20 | 3/4" |
| 1/2" | 2 1/2" | 1 1/4" | 3/4" | 5/16" | 20 | 1 1/4" |
| 1/2" | 2 1/4" | 1 1/4" | 3/4" | 5/16" | 20 | 1" |
| 1/2" | 2 3/4" | 1 1/4" | 3/4" | 5/16" | 20 | 1 1/2" |
| 1/2" | 2" | 1 1/4" | 3/4" | 5/16" | 20 | 3/4" |
| 1/2" | 3 1/2" | 1 1/4" | 3/4" | 5/16" | 20 | 2 1/4" |
| 1/2" | 3" | 1 1/4" | 3/4" | 5/16" | 20 | 1 3/4" |
| 1/2" | 4 1/2" | 1 1/4" | 3/4" | 5/16" | 20 | 3 1/4" |
| 1/2" | 4" | 1 1/4" | 3/4" | 5/16" | 20 | 2 3/4" |
| 1/2" | 5 1/2" | 1 1/4" | 3/4" | 5/16" | 20 | 4 1/4" |
| 1/2" | 5" | 1 1/4" | 3/4" | 5/16" | 20 | 3 3/4" |
| 1/2" | 6 1/2" | 1 1/4" | 3/4" | 5/16" | 20 | 5 1/4" |
| 1/2" | 6" | 1 1/4" | 3/4" | 5/16" | 20 | 4 3/4" |
Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.
