ASME B18.3 #8-32 UNC×0.3125 Cap Screw6 combinations of material, property class and finish supplied in this size.
- Standard
- ASME B18.3 · 2012
- Thread
- #8-32 UNC
- Length under head
- 5/16 in
- Head height
- 0.164 in
- Clearance / tap drill
- #29 (0.1360 in)
- Weight
- 1.73 kg per 1 000 pieces · Theoretical, from nominal geometry — confirm before ordering577 pieces per kg
Order #8-32 UNC×0.3125
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 | — | |
| Stainless Steel | AF | Passivated | — | |
| Stainless Steel | AF | Plain | — | |
| Stainless Steel | CW | Passivated | — | |
| Stainless Steel | CW | Plain | — |
Dimensions at #8-32 UNC×0.3125
| Dimension | Value |
|---|---|
| k | 0.164 in |
| Weight | 1.73 kg / 1000 pcs |
| Pieces per kg | 577 |
Plating adds thickness — state the finish on the order.
Holes for this thread
ISO 273 · ISO 2306| Hole | Diameter |
|---|---|
| Tap drill | #29 (0.1360 in) |
Other lengths in #8-32 UNC
All sizes →| Size | kg per 1 000 pieces | |
|---|---|---|
| #8-32 UNC×0.25 | 1.57 | open |
| #8-32 UNC×0.3125 | 1.73 | this page |
| #8-32 UNC×0.375 | 1.89 | open |
| #8-32 UNC×0.4375 | 2.05 | open |
| #8-32 UNC×0.5 | 2.21 | open |
#8-32 UNC x 0.25#8-32 UNC x 0.375#8-32 UNC x 0.4375#8-32 UNC x 0.5#8-32 UNC x 0.625#8-32 UNC x 0.75#8-32 UNC x 0.875#8-32 UNC x 1#8-32 UNC x 1.125#8-32 UNC x 1.25#8-32 UNC x 1.375#8-32 UNC x 1.5
StandardsASME B18.3All sizes