bolts › close tolerance bolts
NAS1581A3T9
Bolt
Description
Fastener Length: 15/16", Thread: 10-32, Thread Length: 3/8"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 0.910 inches minimum and 0.940 inches maximum |
| Grip Diameter | 0.1885 inches minimum and 0.1895 inches maximum |
| Grip Length | 0.552 inches minimum and 0.572 inches maximum |
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Diameter | 0.258 inches minimum and 0.305 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Offset cruciform (torque set) |
| Length | 15/16 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas1581 professional/industrial association standard |
| Surface Finish | 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 ty 2 cl 2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | 0.338 inches minimum and 0.388 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.
- NAS1581A3T4
- NAS1581A3T9
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for NAS1581A3T9 — functionally equivalent.
- NAS1581F3T9 Listed alternate #10-32 · 15/16 in · Flat countersunk · Steel
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- NAS1581A3R9 NAS #10-32 · 15/16 in · Flat countersunk · Steel
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Catalog data updated 2026-07-05. Report a data error