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12705N4C8 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12705N4C8: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OR STEEL COMP 4037 OVERALL, head_style: FLAT CHAMFER, head_height: 0.182 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.357 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, thread_length: 0.303 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-064-6261, 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
12705N4C8
NSN: 5305-01-064-6261
FSC: 5305 — Screws
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OR STEEL COMP 4037 OVERALL
head_styleFLAT CHAMFER
head_height0.182 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.357 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
thread_length0.303 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length0.862 INCHES MINIMUM AND 0.888 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
shoulder_length0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM FIRST SHOULDER IN
special_featuresPELLET TYPE ELEMENT IN THREADS
thread_directionRIGHT-HAND
NSN5305-01-064-6261
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12705N4C8 · 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
•
WIDTH ACROSS FLATS: 0.125 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.182 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.862 INCHES MINIMUM AND 0.888 INCHES MAXIMUM IN
•
SHOULDER LENGTH: 0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM FIRST SHOULDER IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER DIAMETER: 0.247 INCHES MINIMUM AND 0.248 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.303 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.125 INCHES NOMINAL IN
HEAD HEIGHT0.182 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
FASTENER LENGTH0.862 INCHES MINIMUM AND 0.888 INCHES MAXIMUM IN
SHOULDER LENGTH0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER0.247 INCHES MINIMUM AND 0.248 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH0.303 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 1
330-2763-000Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12705N4C8?
12705N4C8 is a SCREW,SHOULDER.
What parts can replace 12705N4C8?
There is 1 known substitute for 12705N4C8: 330-2763-000. Substitute compatibility should be verified for your specific system.
What is the NSN for 12705N4C8?
12705N4C8 is cataloged in the U.S. Government catalog under NSN 5305-01-064-6261. 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.