bolts › close tolerance bolts
NAS1581F3T8X
Bolt
Description
Fastener Length: 7/8", Thread: 10-32, Thread Length: 23/64"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 0.848 inches minimum and 0.878 inches maximum |
| Head Diameter | 0.2578 inches minimum and 0.3047 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Offset cruciform (torque set) |
| Length | 7/8 |
| Material | Steel |
| Material Specification | Mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response |
| Shoulder Diameter | 0.2041 inches minimum first shoulder and 0.2051 inches maximum first shoulder |
| Shoulder Length | 0.490 inches minimum first shoulder and 0.510 inches maximum first shoulder |
| Shoulder Shape | Round first shoulder |
| Specification Data | 80205-nas1581 professional/industrial association standard |
| 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 | 0.363 |
| 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.
- NAS1581F3T8X
- NAS1581F3T9X
- NAS1581F3T11
- NAS1581F3T12
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1581F3T8X. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error