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FH-M4-25 ZI — STUD,SELF-LOCKING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

FH-M4-25 ZI: STUD,SELF-LOCKING.

The STUD,SELF-LOCKING is a the manufacturer industrial component. Key specifications include special_features: FLUSH HEAD, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-433-5997, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
FH-M4-25 ZI
NSN: 5307-01-433-5997
FSC: 5307 — Studs
CAGE: 46384 — PENN ENGINEERING & MANUFACTURING CORP (USA)
SPECIFICATIONS
special_featuresFLUSH HEAD
surface_treatmentZINC OVERALL
NSN5307-01-433-5997
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FH-M4-25 ZI · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESFLUSH HEAD
SURFACE TREATMENTZINC OVERALL
OTHER ITEMS IN FSC 5307 — Studs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625
SUBSTITUTES & CROSS-REFERENCES 2
77091763Reference document
Same NSN cross-reference
Reference document — Secondary reference
91641722Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FH-M4-25 ZI?
FH-M4-25 ZI is a STUD,SELF-LOCKING.
What parts can replace FH-M4-25 ZI?
There are 2 known substitutes for FH-M4-25 ZI: 77091763, 91641722. Substitute compatibility should be verified for your specific system.
What is the NSN for FH-M4-25 ZI?
FH-M4-25 ZI is cataloged in the U.S. Government catalog under NSN 5307-01-433-5997. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.