screws › close tolerance screws
NAS1580C4T3
Close Tolerance Screw
Description
length: 0.590", thread: 1/4-28 shear, flush head, corrosion resistant steel, offset cruciform
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 0.575 inches minimum and 0.605 inches maximum |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.177 inches minimum and 0.197 inches maximum |
| Head Diameter | 0.464 |
| Head Style | Flat countersunk |
| Internal Drive Style | Torque-set ribbed |
| Length | 19/32 |
| Material | Iron |
| Material Specification | Ams5731 assn std single material response or ams5732 assn std single material response or ams5737 assn std single material response or ams5853 assn std single material response |
| Min. Tensile Strength (psi) | 5790 pounds per square inch |
| Point Style | Flat |
| Specification Data | 80205-nas1580 professional/industrial association standard |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.2500 |
| Thread Direction | Right-hand |
| Thread Length | 0.403 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1580C4T3
- NAS1580C4T5
- NAS1580C4T6
- NAS1580C4T12
- NAS1580C4T12D
- NAS1580C4T32
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1580C4T3. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error