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126736 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

126736: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4037 OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.359 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN, thread_length: 0.360 INCHES MINIMUM AND 0.462 INCHES MAXIMUM IN, fastener_length: 0.542 INCHES MINIMUM AND 0.582 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-045-6600, 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
126736
NSN: 5305-01-045-6600
FSC: 5305 — Screws
CAGE: 09205 — LOCKHEED MARTIN CORP ELECTRONICS AND MISSILES DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 4037 OVERALL
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.359 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
thread_length0.360 INCHES MINIMUM AND 0.462 INCHES MAXIMUM IN
fastener_length0.542 INCHES MINIMUM AND 0.582 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
countersink_angle82.0 DEGREES NOMINAL
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
NSN5305-01-045-6600
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 126736 · 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 MINIMUM AND 0.127 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.542 INCHES MINIMUM AND 0.582 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.360 INCHES MINIMUM AND 0.462 INCHES MAXIMUM IN
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
FASTENER LENGTH0.542 INCHES MINIMUM AND 0.582 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.360 INCHES MINIMUM AND 0.462 INCHES MAXIMUM IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
INTERNAL DRIVE STYLEHEXAGON
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: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 126736?
126736 is a SCREW,CAP,SOCKET HEAD.
What is the NSN for 126736?
126736 is cataloged in the U.S. Government catalog under NSN 5305-01-045-6600. 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.