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HT4020-6-19AX — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

HT4020-6-19AX: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK UNDERCUT, head_height: 0.109 INCHES MINIMUM IN, thread_class: 3A A, head_diameter: 0.756 INCHES MINIMUM IN, thread_length: 0.615 INCHES MINIMUM IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-585-8097, 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
HT4020-6-19AX
NSN: 5305-01-585-8097
FSC: 5305 — Screws
CAGE: 17446 — HUCK INTERNATIONAL, INC (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK UNDERCUT
head_height0.109 INCHES MINIMUM IN
thread_class3A A
head_diameter0.756 INCHES MINIMUM IN
thread_length0.615 INCHES MINIMUM IN
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM
internal_drive_styleHIGH-TORQUE
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF)
NSN5305-01-585-8097
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: HT4020-6-19AX · 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: 0.109 INCHES MINIMUM IN
•
THREAD LENGTH: 0.615 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK UNDERCUT
•
THREAD DIRECTION: RIGHT-HAND
•
INTERNAL DRIVE STYLE: HIGH-TORQUE
•
COUNTERSINK ANGLE: 99.0 DEGREES MINIMUM
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.109 INCHES MINIMUM IN
THREAD LENGTH0.615 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEFLAT COUNTERSUNK UNDERCUT
THREAD DIRECTIONRIGHT-HAND
INTERNAL DRIVE STYLEHIGH-TORQUE
COUNTERSINK ANGLE99.0 DEGREES MINIMUM
THREAD CLASS3A A
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
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 2
WC4020-6-19AXSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
ST3M653C6-19ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HT4020-6-19AX?
HT4020-6-19AX is a SCREW,SHOULDER.
What parts can replace HT4020-6-19AX?
There are 2 known substitutes for HT4020-6-19AX: WC4020-6-19AX, ST3M653C6-19A. Substitute compatibility should be verified for your specific system.
What is the NSN for HT4020-6-19AX?
HT4020-6-19AX is cataloged in the U.S. Government catalog under NSN 5305-01-585-8097. This indicates validated use in U.S. government and defense supply chains.
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