ASME B18.3 1/2-13 UNC×3.25 Cap Screw2 combinations of material, property class and finish supplied in this size.
- Standard
- ASME B18.3 · 2012
- Thread
- 1/2-13 UNC
- Length under head
- 3-1/4 in
- Head height
- 0.5 in
- Clearance / tap drill
- 27/64 (0.4219 in)
- Weight
- 98.51 kg per 1 000 pieces · Theoretical, from nominal geometry — confirm before ordering10.2 pieces per kg
Order 1/2-13 UNC×3.25
Set a quantity on as many rows as you need. Not listed? We make to your drawing — send it with the enquiry.
| Material | Class | Finish | Quantity | Net weight |
|---|---|---|---|---|
| Alloy Steel | — | Blackened | — | |
| Alloy Steel | — | Plain | — |
Dimensions at 1/2-13 UNC×3.25
| Dimension | Value |
|---|---|
| k | 0.5 in |
| Weight | 98.51 kg / 1000 pcs |
| Pieces per kg | 10.2 |
Plating adds thickness — state the finish on the order.
Holes for this thread
ISO 273 · ISO 2306| Hole | Diameter |
|---|---|
| Tap drill | 27/64 (0.4219 in) |
Other lengths in 1/2-13 UNC
All sizes →| Size | kg per 1 000 pieces | |
|---|---|---|
| 1/2-13 UNC×2.75 | 86.76 | open |
| 1/2-13 UNC×3 | 92.63 | open |
| 1/2-13 UNC×3.25 | 98.51 | this page |
| 1/2-13 UNC×3.5 | 104.38 | open |
| 1/2-13 UNC×3.75 | 110.25 | open |
1/2-13 UNC x 0.51/2-13 UNC x 0.6251/2-13 UNC x 0.751/2-13 UNC x 0.8751/2-13 UNC x 11/2-13 UNC x 1.1251/2-13 UNC x 1.251/2-13 UNC x 1.3751/2-13 UNC x 1.51/2-13 UNC x 1.751/2-13 UNC x 21/2-13 UNC x 2.251/2-13 UNC x 2.51/2-13 UNC x 2.751/2-13 UNC x 31/2-13 UNC x 3.51/2-13 UNC x 3.751/2-13 UNC x 4All 151 sizes →
StandardsASME B18.3All sizes