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91287A777 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91287A777: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 8.8 MILLIMETERS NOMINAL MM, thread_length: 20.0 MILLIMETERS NOMINAL MM, fastener_length: 20.0 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-615-4147, 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
91287A777
NSN: 5305-01-615-4147
FSC: 5305 — Screws
CAGE: 97852 — STAR STAINLESS SCREW CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height8.8 MILLIMETERS NOMINAL MM
thread_length20.0 MILLIMETERS NOMINAL MM
fastener_length20.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
width_between_flats22.0 MILLIMETERS NOMINAL MM
nominal_thread_diameter14.0 MILLIMETERS MM
thread_series_designatorM
thread_pitch_in_millimeters2.0
NSN5305-01-615-4147
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91287A777 · 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
•
HEAD HEIGHT: 8.8 MILLIMETERS NOMINAL MM
•
FASTENER LENGTH: 20.0 MILLIMETERS NOMINAL MM
•
THREAD PITCH IN MILLIMETERS: 2.0
•
THREAD LENGTH: 20.0 MILLIMETERS NOMINAL MM
•
NOMINAL THREAD DIAMETER: 14.0 MILLIMETERS MM
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 22.0 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
HEAD HEIGHT8.8 MILLIMETERS NOMINAL MM
FASTENER LENGTH20.0 MILLIMETERS NOMINAL MM
THREAD PITCH IN MILLIMETERS2.0
THREAD LENGTH20.0 MILLIMETERS NOMINAL MM
NOMINAL THREAD DIAMETER14.0 MILLIMETERS MM
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS22.0 MILLIMETERS NOMINAL MM
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORM
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91287A777?
91287A777 is a SCREW,CAP,HEXAGON HEAD.
What is the NSN for 91287A777?
91287A777 is cataloged in the U.S. Government catalog under NSN 5305-01-615-4147. 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.