ASME B18.3 5/16-18 UNC×3 Socket Head Cap Screw2 combinations of material, property class and finish supplied in this size.
- Standard
- ASME B18.3 · 2012
- Thread
- 5/16-18 UNC
- Length under head
- 3 in
- Head height
- 0.312 in
- Clearance / tap drill
- F (0.2570 in)
- Weight
- 32.94 kg per 1 000 pieces · Theoretical, from nominal geometry — confirm before ordering30.4 pieces per kg
Order 5/16-18 UNC×3
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 5/16-18 UNC×3
| Dimension | Value |
|---|---|
| k | 0.312 in |
| Weight | 32.94 kg / 1000 pcs |
| Pieces per kg | 30.4 |
Plating adds thickness — state the finish on the order.
Holes for this thread
ISO 273 · ISO 2306| Hole | Diameter |
|---|---|
| Tap drill | F (0.2570 in) |
Other lengths in 5/16-18 UNC
All sizes →| Size | kg per 1 000 pieces | |
|---|---|---|
| 5/16-18 UNC×2 | 23.76 | open |
| 5/16-18 UNC×2.25 | 26.05 | open |
| 5/16-18 UNC×2.5 | 28.35 | open |
| 5/16-18 UNC×2.75 | 30.64 | open |
| 5/16-18 UNC×3 | 32.94 | this page |
5/16-18 UNC x 0.31255/16-18 UNC x 0.3755/16-18 UNC x 0.43755/16-18 UNC x 0.55/16-18 UNC x 0.6255/16-18 UNC x 0.755/16-18 UNC x 0.8755/16-18 UNC x 15/16-18 UNC x 1.1255/16-18 UNC x 1.255/16-18 UNC x 1.3755/16-18 UNC x 1.55/16-18 UNC x 1.755/16-18 UNC x 25/16-18 UNC x 2.255/16-18 UNC x 2.55/16-18 UNC x 2.75
Nearby sizes3/8-16 UNC x 0.375
StandardsASME B18.3All sizes