screws › machine screws
NAS221-9
Machine Screw
Description
Fastener Length: 5/8", Thread: 10-32, Thread Length: 33/64", NAS221 series screw
Specifications
| Fastener Length | Between 0.579 inches and 0.626 inches |
|---|---|
| Hardness Rating | Between 26.0 rockwell c and 32.0 rockwell c |
| Head Diameter | Between 0.361 inches and 0.385 inches |
| Head Height | Between 0.103 inches and 0.118 inches |
| Head Style | Round Head |
| Internal Drive Style | Cross recess type 1 |
| Length | 5/8 |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Screw Material | Steel comp 8630 |
| Screw Material Specification | Mil-s-6050 military specification single material response or an-s-9 military standard single material response |
| Screw Surface Treatment | Cadmium |
| Screw Surface Treatment Specification | Cl 3 federal specification single treatment response type 1 qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.377 inches and 0.516 inches |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 10 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS221-9. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error