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HT6M34 — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

HT6M34: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 4130 OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN, head_diameter: 0.717 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-754-3063, 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
HT6M34
NSN: 5305-00-754-3063
FSC: 5305 — Screws
CAGE: 73197 — HI-SHEAR CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 4130 OVERALL
head_styleFLAT COUNTERSUNK
grip_length2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN
head_diameter0.717 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
thread_length0.616 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES GRIP
fastener_length2.751 INCHES MINIMUM AND 2.781 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
NSN5305-00-754-3063
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: HT6M34 · 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
•
SURFACE FINISH: 32.0 MICROINCHES THREADS
•
FASTENER LENGTH: 2.751 INCHES MINIMUM AND 2.781 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.616 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES GRIP
FASTENER LENGTH2.751 INCHES MINIMUM AND 2.781 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.616 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SPECIFICATION/STANDARD DATA80205-NAS586 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HT6M34?
HT6M34 is a SCREW,CLOSE TOLERANCE.
What is the NSN for HT6M34?
HT6M34 is cataloged in the U.S. Government catalog under NSN 5305-00-754-3063. 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.