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CFHA-M4-20 — STUD,SELF-LOCKING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

CFHA-M4-20: STUD,SELF-LOCKING.

The STUD,SELF-LOCKING is a the manufacturer industrial component. Key specifications include head_length: 1.91 MILLIMETERS MAXIMUM MM, head_diameter: 7.34 MILLIMETERS MAXIMUM MM, overall_length: 16.0 MILLIMETERS MINIMUM AND 24.0 MILLIMETERS MAXIMUM MM, special_features: MATERIAL ALUMINUM AND STAINLESS STEEL STUDS, style_designator: SELF-LOCKING, distance_across_flats: 8.08 MILLIMETERS MINIMUM AND 9.58 MILLIMETERS MAXIMUM MM. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-447-4443, 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
CFHA-M4-20
NSN: 5307-01-447-4443
FSC: 5307 — Studs
CAGE: 46384 — PENN ENGINEERING & MANUFACTURING CORP (USA)
SPECIFICATIONS
head_length1.91 MILLIMETERS MAXIMUM MM
head_diameter7.34 MILLIMETERS MAXIMUM MM
overall_length16.0 MILLIMETERS MINIMUM AND 24.0 MILLIMETERS MAXIMUM MM
special_featuresMATERIAL ALUMINUM AND STAINLESS STEEL STUDS
style_designatorSELF-LOCKING
distance_across_flats8.08 MILLIMETERS MINIMUM AND 9.58 MILLIMETERS MAXIMUM MM
NSN5307-01-447-4443
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: CFHA-M4-20 · 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
•
STYLE DESIGNATOR: SELF-LOCKING
•
HEAD LENGTH: 1.91 MILLIMETERS MAXIMUM MM
•
DISTANCE ACROSS FLATS: 8.08 MILLIMETERS MINIMUM AND 9.58 MILLIMETERS MAXIMUM MM
•
HEAD DIAMETER: 7.34 MILLIMETERS MAXIMUM MM
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSELF-LOCKING
OVERALL LENGTH16.0 MILLIMETERS MINIMUM AND 24.0 MILLIMETERS MAXIMUM MM
HEAD LENGTH1.91 MILLIMETERS MAXIMUM MM
SPECIAL FEATURESMATERIAL ALUMINUM AND STAINLESS STEEL STUDS
DISTANCE ACROSS FLATS8.08 MILLIMETERS MINIMUM AND 9.58 MILLIMETERS MAXIMUM MM
HEAD DIAMETER7.34 MILLIMETERS MAXIMUM MM
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 1
77091289Reference 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 CFHA-M4-20?
CFHA-M4-20 is a STUD,SELF-LOCKING.
What parts can replace CFHA-M4-20?
There is 1 known substitute for CFHA-M4-20: 77091289. Substitute compatibility should be verified for your specific system.
What is the NSN for CFHA-M4-20?
CFHA-M4-20 is cataloged in the U.S. Government catalog under NSN 5307-01-447-4443. 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.