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ML8-4 — THUMBSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

ML8-4: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: KNURLED NO. 2, head_height: 0.3125 INCHES NOMINAL IN, point_style: FLAT, head_diameter: 0.3125 INCHES NOMINAL IN, thread_length: 0.50 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-694-6101, 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
ML8-4
NSN: 5305-01-694-6101
FSC: 5305 — Screws
CAGE: 0ST81 — SEITZ SCIENTIFIC INDUSTRIES, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleKNURLED NO. 2
head_height0.3125 INCHES NOMINAL IN
point_styleFLAT
head_diameter0.3125 INCHES NOMINAL IN
thread_length0.50 INCHES NOMINAL IN
shoulder_shapeROUND OVERALL
fastener_length0.75 INCHES NOMINAL IN
shoulder_length0.125 INCHES NOMINAL OVERALL IN
thread_directionRIGHT-HAND
shoulder_diameter0.25 INCHES NOMINAL OVERALL IN
surface_treatmentOXIDE OVERALL
NSN5305-01-694-6101
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ML8-4 · 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: 0.3125 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.75 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.125 INCHES NOMINAL OVERALL IN
•
SHOULDER DIAMETER: 0.25 INCHES NOMINAL OVERALL IN
•
THREAD LENGTH: 0.50 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND OVERALL
•
NOMINAL THREAD DIAMETER: 0.086 INCHES IN
•
HEAD STYLE: KNURLED NO. 2
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.3125 INCHES NOMINAL IN
FASTENER LENGTH0.75 INCHES NOMINAL IN
SHOULDER LENGTH0.125 INCHES NOMINAL OVERALL IN
SHOULDER DIAMETER0.25 INCHES NOMINAL OVERALL IN
THREAD LENGTH0.50 INCHES NOMINAL IN
SHOULDER SHAPEROUND OVERALL
NOMINAL THREAD DIAMETER0.086 INCHES IN
HEAD STYLEKNURLED NO. 2
THREAD DIRECTIONRIGHT-HAND
POINT STYLEFLAT
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ML8-4?
ML8-4 is a THUMBSCREW.
What is the NSN for ML8-4?
ML8-4 is cataloged in the U.S. Government catalog under NSN 5305-01-694-6101. 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.