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NAS221C12
Screw
Description
Fastener Length: 13/16", Thread: 10-32, Thread Length: 33/64"
Specifications
| Fastener Length | 0.766 inches minimum and 0.813 inches maximum |
|---|---|
| Hardness Rating | 248.0 brinell standard minimum and 321.0 brinell standard maximum |
| Head Diameter | 0.361 inches minimum and 0.385 inches maximum |
| Head Height | 0.103 inches minimum and 0.118 inches maximum |
| Head Style | Round Head |
| Internal Drive Style | Cross recess type 1 |
| Length | 13/16 |
| Material | Iron |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Screw Material | Iron alloy 660 |
| Screw Material Specification | Ams 5735 assn std single material response |
| Screw Surface Treatment | Passivate |
| Screw Surface Treatment Specification | Mil-s-5002 mil spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | 0.377 inches minimum and 0.516 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNF |
| Thread Size | 10 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS221C8
- NAS221C12
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for NAS221C12 — functionally equivalent.
- MS27039C1-12 Listed alternate 13/16 in · Pan Head · CRES
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error