ASME B18.2.1 1/2-13 UNC×1 Hex Cap Screw8 combinations of material, property class and finish supplied in this size.
- Standard
- ASME B18.2.1 · 2012
- Thread
- 1/2-13 UNC
- Length under head
- 1 in
- Drive
- 0.75 in spanner · e 0.84 in
- Head height
- 0.323 in
- Clearance / tap drill
- 27/64 (0.4219 in)
- Weight
- 42.11 kg per 1 000 pieces · Theoretical, from nominal geometry — confirm before ordering23.7 pieces per kg
Order 1/2-13 UNC×1
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 |
|---|---|---|---|---|
| Carbon Steel | Grade 5 | Zinc Plated | — | |
| Carbon Steel | Grade 5 | Blackened | — | |
| Carbon Steel | Grade 5 | Plain | — | |
| Carbon Steel | Grade 8 | Zinc Plated | — | |
| Carbon Steel | Grade 8 | Blackened | — | |
| Carbon Steel | Grade 8 | Plain | — | |
| Carbon Steel | Grade A | Hot Dip Galvanized | — | |
| Carbon Steel | Grade A | Plain | — |
Dimensions at 1/2-13 UNC×1
| Dimension | Value |
|---|---|
| s | 0.75 in |
| e | 0.84 in |
| k | 0.323 in |
| Weight | 42.11 kg / 1000 pcs |
| Pieces per kg | 23.7 |
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×1 | 42.11 | this page |
| 1/2-13 UNC×1.125 | 45.05 | open |
| 1/2-13 UNC×1.25 | 47.98 | open |
| 1/2-13 UNC×1.375 | 50.92 | open |
| 1/2-13 UNC×1.5 | 53.86 | open |
1/2-13 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 3.251/2-13 UNC x 3.51/2-13 UNC x 3.751/2-13 UNC x 41/2-13 UNC x 4.51/2-13 UNC x 51/2-13 UNC x 5.5
Nearby sizes7/16-14 UNC x 5.5
StandardsASME B18.2.1All sizes