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MS51957-8
2-56 X 5/8 MS51957, Phil Pan Machine Screw Coarse Full Thread 300 Series S/S DFAR, MS51957-8
Description
MS 51957-8 Phillips Pan Head Machine Screw
Specifications
| Country of Origin | USA |
|---|---|
| Diameter | #2 |
| Drive Style | Phillips |
| Drive Type | Phillips |
| Fastener Length | 0.625 |
| Finish | Passivate |
| Full Size | #2-56 x 5/8 |
| Head Angle | 100 ? |
| Head Diameter | Between 0.155 inches and 0.167 inches |
| Head Height | Between 0.053 inches and 0.062 inches |
| Head Style | Phillips Pan Head |
| Head Type | Pan |
| Industry Standards/Certification | MS51957 |
| Internal Drive Style | Cross recess type 1 |
| Length | 0.625, 5/8 |
| Material | CRES |
| MilspecPart | MS51957 |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| NIIN | 00-054-5642 |
| NSN | 5305-00-054-5642 |
| Screw Material | Steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316 |
| Screw Material Specification | 66 federal standard all material responses |
| Screw Surface Treatment | Passivate |
| Screw Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Size | 2-56 |
| Thread Class | 2a |
| Thread Diameter | 0.086 |
| Thread Direction | Right-hand |
| Thread Fraction | 2-56 |
| Thread Length | Between 0.589 inches and 0.625 inches |
| Thread Qty | 56 |
| Thread Qty Per Inch (tpi) | 56 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 2-56 |
| Thread Type | N.C. - Coarse, UNC-2A |
| Threads Per Inch | 56 |
| U.O.M. | Imperial |
| Weight | 0.001 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.
- MS35206-208 MS #2-56 · 5/8 in · Phillips Pan Head · Steel
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Catalog data updated 2026-07-05. Report a data error