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NAS662C2R8
Machine Screw
Description
Fastener Length: 1/2", Thread: 2-56, Thread Length: 1/2", NAS662 series screw
Specifications
| Countersink Angle | Between 99.0 degrees and 101.0 degrees |
|---|---|
| Fastener Length | 0.500 |
| Head Diameter | Between 0.156 inches and 0.172 inches |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Length | 1/2 |
| Material | CRES |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| Screw Material | Stainless steel |
| Screw Surface Treatment | Passivate |
| Screw Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Thread Class | 2a |
| Thread Diameter | 0.086 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.464 inches and 0.500 inches |
| Thread Qty | 56 |
| Thread Qty Per Inch (tpi) | 56 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 2 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- AN505-2-8 AN #2-56 · 1/2 in · Flat countersunk · Steel
- NAS1102-02-8 NAS #2-56 · 1/2 in · Flat countersunk · Steel
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Catalog data updated 2026-07-05. Report a data error