bolts › close tolerance bolts
NAS1580A5T9
Close Tolerance Bolt
Description
Fastener Length: 1-5/64", Thread: 1/4-24, Thread Length: 1/2
Specifications
| Countersink Angle | Between 99.0 degrees and 101.0 degrees |
|---|---|
| Fastener Length | Between 1.048 inches and 1.078 inches |
| Grip Diameter | Between 0.3110 inches and 0.3120 inches |
| Grip Length | Between 0.552 inches and 0.572 inches |
| Head Diameter | Between 0.578 inches and 0.633 inches |
| Head Style | Flat countersunk |
| Internal Drive Style | Torque-set ribbed |
| Material | Steel |
| Material Specification | Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-6049 military specification 3rd material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas1580 professional/industrial association standard |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 type 2 cl 2 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.501 |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 1/4 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1580A5T9. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error