NAS1352C4-28
Screw, Cap, Socket Head, 1/4-20 x 1-3/4, 300 CRES
| A | Head diameter (A) | Ø0.375" |
| B | Head height (H) | 0.250" |
| C | Key engagement (T) | 0.120" |
| D | Length (L) | 1.750" |
| E | Body diameter (D) | Ø0.250" |
| F | Socket size (J) | 0.188" A/F |
| G | Thread | 1/4-20 |
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 | $5.89/ EA | Available to order | 15 hours ago | View product ↗ |
Military Fasteners AS9120BISO 9001:2015 | $3.12/ EA | Available to order | 15 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 | 1/4-20 |
| Thread class | 3A |
| Threads per inch | 20 |
| Thread diameter | 0.25" |
| Length | 1.75" |
| Body diameter / across flats | 0.25" |
| Head diameter / across flats | 0.375" |
| Head height | 0.25" |
| Material | 300 CRES |
| Finish | Passivated |
| Head style | Socket Head |
| Drive type | Hex Socket |
| Tensile strength | 80 ksi |
| Chamfer (in) | 0.008 |
| Socket Size (in) | 0.188 |
| Thread Series | UNRC-3A |
| Socket Depth (in) | 0.12 |
| Thread Length (in) | 1 |
| Wall Thickness (in) | 0.095 |
| Head Side Height (in) | 0.225 |