NAS1351-06-4
Screw, Cap, Socket Head, 6-40 x 1/4, Alloy Steel
| A | Head diameter (A) | Ø0.226" |
| B | Head height (H) | 0.138" |
| C | Key engagement (T) | 0.064" |
| D | Length (L) | 0.250" |
| E | Body diameter (D) | Ø0.138" |
| F | Socket size (J) | 0.109" A/F |
| G | Thread | 6-40 |
Generated from the NAS1351/NAS1352 Rev 9 dimension table. Letters key to the table below. Dimensions in inches — reference only; consult the standard for tolerances.
Where to Buy
| Supplier | Price | Availability | Updated | |
|---|---|---|---|---|
Bisco Industries AS9100DAS9120B | — | Not orderable | 17 hours ago | View product ↗ |
Only AS9100-series certified suppliers are listed, so every source here can provide lot traceability. “Available to order” means the supplier will accept an order — it does not confirm shelf stock. Quote-only listings require supplier confirmation of price and availability. Prices are the supplier's own as of the time shown and may have changed since; the supplier's page is authoritative.
Technical Specifications
| Category | screw |
|---|---|
| Thread size | 6-40 |
| Thread class | 3A |
| Threads per inch | 40 |
| Thread diameter | 0.138" |
| Length | 0.25" |
| Body diameter / across flats | 0.138" |
| Head diameter / across flats | 0.226" |
| Head height | 0.138" |
| Material | Alloy Steel |
| Finish | Cadmium Plated |
| Head style | Socket Head |
| Drive type | Hex Socket |
| Tensile strength | 180 ksi |
| Chamfer (in) | 0.005 |
| Socket Size (in) | 0.109 |
| Thread Series | UNRF-3A |
| Socket Depth (in) | 0.064 |
| Thread Length (in) | 0.75 |
| Wall Thickness (in) | 0.047 |
| Head Side Height (in) | 0.124 |