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NAS1189-4T10L
Machine Screw
Description
Fastener Length: 5/8", Thread: 1/4-28, Thread Length: 5/8
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 0.625 |
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Diameter | 0.491 inches minimum and 0.507 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Offset cruciform (torque set) |
| Length | 5/8 |
| Locking Feature | Strip threads |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 3 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.625 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1189-4T9L
- NAS1189-4T10L
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.
- MS24693-S295 MS 1/4-28 · 5/8 in · Flat countersunk · Steel
- MS24693C295 MS 1/4-28 · 5/8 in · Flat countersunk · CRES
- MS24693S295 MS 1/4-28 · 5/8 in · Flat countersunk · Steel
- NAS1102-4-10 NAS 1/4-28 · 5/8 in · Flat countersunk · Steel
- NAS5704U10 NAS 1/4-28 · 5/8 in · Flat countersunk · Iron
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Catalog data updated 2026-07-05. Report a data error