bolts › close tolerance bolts
NAS1578A3H2
Bolt
Description
Fastener Length: 1/2", Thread: 10-32, Thread Length: 3/8"
Specifications
| Fastener Length | 0.472 inches minimum and 0.502 inches maximum |
|---|---|
| Grip Diameter | 0.1885 inches minimum and 0.1895 inches maximum |
| Grip Length | 0.115 inches minimum and 0.135 inches maximum |
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Diameter | 0.360 inches minimum and 0.374 inches maximum |
| Head Height | 0.115 inches minimum and 0.125 inches maximum |
| Head Style | Pan no. 2 |
| Internal Drive Style | High-torque |
| Length | 1/2 |
| Material | Steel |
| 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 | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,ty2,cl2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | 0.337 inches minimum and 0.387 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNJF |
| Thread Size | 10 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1578A3H2
- NAS1578A3H3
- NAS1578A3H6
- NAS1578A3H20
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.
- NAS1578C3H2 NAS #10-32 · 1/2 in · Pan no. 2 · Iron
- NAS1578C3R2 NAS #10-32 · 1/2 in · Pan no. 2 · Iron
- NAS1578C3T2 NAS #10-32 · 1/2 in · Pan no. 2 · Iron
- NAS1578C3T2P NAS #10-32 · 1/2 in · Pan no. 2 · Iron
- NAS1578V3H2 NAS #10-32 · 1/2 in · Pan no. 2 · Titanium
- NAS1578V3R2 NAS #10-32 · 1/2 in · Pan no. 2 · Titanium
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error