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40-0038477 — SCREW,SELF-DRILLING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

40-0038477: SCREW,SELF-DRILLING.

The SCREW,SELF-DRILLING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON EXTENDED WASHERHEXAGON EXTENDED WASHER, head_height: 0.124 INCHES MINIMUM AND 0.124 INCHES MINIMUM AND 0.151 INCHES MAXIMUM0.151 INCHES MAXIMUM IN, point_style: SELF-DRILLINGSELF-DRILLING, fastener_length: 0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-283-8665, 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
40-0038477
NSN: 5305-01-283-8665
FSC: 5305 — Screws
CAGE: 28265 — HERCULES ENGINE CO INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON EXTENDED WASHERHEXAGON EXTENDED WASHER
head_height0.124 INCHES MINIMUM AND 0.124 INCHES MINIMUM AND 0.151 INCHES MAXIMUM0.151 INCHES MAXIMUM IN
point_styleSELF-DRILLINGSELF-DRILLING
fastener_length0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN
surface_treatmentZINC OVERALL
width_between_flats0.305 INCHES MINIMUM AND 0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM0.312 INCHES MAXIMUM IN
internal_drive_styleW/O INTERNAL DRIVEW/O INTERNAL DRIVE
extended_washer_diameter0.384 INCHES MINIMUM AND 0.384 INCHES MINIMUM AND 0.414 INCHES MAXIMUM0.414 INCHES MAXIMUM IN
extended_washer_thickness0.019 INCHES MINIMUM AND 0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM0.031 INCHES MAXIMUM IN
nonmachine_nominal_thread_diameter0.190 INCHES0.190 INCHES IN
NSN5305-01-283-8665
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 40-0038477 · 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
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.190 INCHES0.190 INCHES IN
•
EXTENDED WASHER THICKNESS: 0.019 INCHES MINIMUM AND 0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM0.031 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.124 INCHES MINIMUM AND 0.124 INCHES MINIMUM AND 0.151 INCHES MAXIMUM0.151 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 0.384 INCHES MINIMUM AND 0.384 INCHES MINIMUM AND 0.414 INCHES MAXIMUM0.414 INCHES MAXIMUM IN
•
HEAD STYLE: HEXAGON EXTENDED WASHERHEXAGON EXTENDED WASHER
•
POINT STYLE: SELF-DRILLINGSELF-DRILLING
•
WIDTH BETWEEN FLATS: 0.305 INCHES MINIMUM AND 0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM0.312 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
NONMACHINE NOMINAL THREAD DIAMETER0.190 INCHES0.190 INCHES IN
EXTENDED WASHER THICKNESS0.019 INCHES MINIMUM AND 0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM0.031 INCHES MAXIMUM IN
HEAD HEIGHT0.124 INCHES MINIMUM AND 0.124 INCHES MINIMUM AND 0.151 INCHES MAXIMUM0.151 INCHES MAXIMUM IN
FASTENER LENGTH0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER0.384 INCHES MINIMUM AND 0.384 INCHES MINIMUM AND 0.414 INCHES MAXIMUM0.414 INCHES MAXIMUM IN
HEAD STYLEHEXAGON EXTENDED WASHERHEXAGON EXTENDED WASHER
POINT STYLESELF-DRILLINGSELF-DRILLING
WIDTH BETWEEN FLATS0.305 INCHES MINIMUM AND 0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM0.312 INCHES MAXIMUM IN
SURFACE TREATMENTZINC OVERALL
INTERNAL DRIVE STYLEW/O INTERNAL DRIVEW/O INTERNAL DRIVE
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
195523Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 40-0038477?
40-0038477 is a SCREW,SELF-DRILLING.
What parts can replace 40-0038477?
There is 1 known substitute for 40-0038477: 195523. Substitute compatibility should be verified for your specific system.
What is the NSN for 40-0038477?
40-0038477 is cataloged in the U.S. Government catalog under NSN 5305-01-283-8665. 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.