screws › close tolerance screws
NAS1578C3T8
Close Tolerance Screw
Description
Fastener Length: 7/8", Thread: 10-32, Thread Length: 3/8"
Specifications
| Fastener Length | Between 0.848 inches and 0.878 inches |
|---|---|
| Grip Diameter | Between 0.1890 inches and 0.1895 inches |
| Grip Length | Between 0.490 inches and 0.510 inches |
| Head Diameter | Between 0.360 inches and 0.374 inches |
| Head Height | Between 0.115 inches and 0.125 inches |
| Head Style | Pan no. 2 |
| Internal Drive Style | Offset cruciform (torque set) |
| Length | 7/8 |
| Material | Iron |
| Material Specification | Ams 5732 assn standard single material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas1578 professional/industrial association standard |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.338 inches and 0.388 inches |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 10 |
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.
- NAS1578A3T8 NAS #10-32 · 7/8 in · Pan no. 2 · Steel
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Catalog data updated 2026-07-05. Report a data error