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LL57D40S12M — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

LL57D40S12M: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: PAN, head_height: 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN, thread_length: 0.750 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-709-9735, 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
LL57D40S12M
NSN: 5305-00-709-9735
FSC: 5305 — Screws
CAGE: 03038 — LONG-LOK, LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_stylePAN
head_height0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
thread_length0.750 INCHES MAXIMUM IN
fastener_length0.750 INCHES NOMINAL IN
locking_featurePELLET THREADS
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.112 INCHES IN
NSN5305-00-709-9735
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: LL57D40S12M · 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: 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.750 INCHES NOMINAL IN
•
THREAD LENGTH: 0.750 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
HEAD STYLE: PAN
•
THREAD DIRECTION: RIGHT-HAND
•
LOCKING FEATURE: PELLET THREADS
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
FASTENER LENGTH0.750 INCHES NOMINAL IN
THREAD LENGTH0.750 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEPAN
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATUREPELLET THREADS
SURFACE TREATMENTPASSIVATE OVERALL
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
THREAD CLASS3A A
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is LL57D40S12M?
LL57D40S12M is a SCREW,CAP,SOCKET HEAD.
What is the NSN for LL57D40S12M?
LL57D40S12M is cataloged in the U.S. Government catalog under NSN 5305-00-709-9735. 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.