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MS51958-80
1/4-28 X 5/8 MS51958 NAS-1635 Phil Pan Machine Screw Fine Full Thread 300 Series S/S DFAR
Description
Length: 5/8", thread: 1/4-28, Pan head, MS51958 series screw
Specifications
| Alternate Part Number | AN526C428R10 |
|---|---|
| Country of Origin | USA |
| Diameter | 1/4 |
| Drive | Phillips |
| Drive Type | Phillips |
| Fastener Length | 0.625 |
| Finish | Passivate, Plain |
| Full Size | 1/4-28 x 5/8 |
| Head Angle | 100 ? |
| Head Diameter | Between 0.473 inches and 0.492 inches |
| Head Height | Between 0.162 inches and 0.175 inches |
| Head Style | Phillips Pan Head |
| Head Type | Pan |
| Industry Standards/Certification | AN507 |
| Internal Drive Style | Cross recess type 1 |
| Length | 5/8 |
| Material | CRES |
| MilspecPart | MS51958 |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| Nondefinitive Specification/Std Data | 3 type and 9c style |
| Screw Material | Steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 |
| Screw Surface Treatment | Passivate |
| Size | 1/4-28 |
| Thread Class | 2a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.625 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 1/4 |
| Thread Type | N.F. - Fine, UNF |
| Threads Per Inch | 28 |
| U.O.M. | Imperial |
| Weight | 0.01 lb |
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.
- MS35207-280 MS 1/4-28 · 5/8 in · Phillips Pan Head · Steel
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Catalog data updated 2026-07-05. Report a data error