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R34028 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

R34028: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_height: 0.280 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.410 INCHES NOMINAL IN, thread_length: 0.710 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN, screw_material: STEEL, fastener_length: 0.810 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-239-2578, 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
R34028
NSN: 5305-01-239-2578
FSC: 5305 — Screws
CAGE: 75160 — DEERE & CO (USA)
SPECIFICATIONS
head_height0.280 INCHES NOMINAL IN
thread_class2A A
head_diameter0.410 INCHES NOMINAL IN
thread_length0.710 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN
screw_materialSTEEL
fastener_length0.810 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.164 INCHES IN
thread_quantity_per_inch36
thread_series_designatorUNF
screw_material_document_and_classificationJDM 117,CAGE 75160 MFR REF SINGLE MATERIAL RESPONSE
NSN5305-01-239-2578
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: R34028 · 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: 0.280 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.810 INCHES NOMINAL IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: JDM 117,CAGE 75160 MFR REF SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 0.710 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.280 INCHES NOMINAL IN
FASTENER LENGTH0.810 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONJDM 117,CAGE 75160 MFR REF SINGLE MATERIAL RESPONSE
THREAD LENGTH0.710 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.164 INCHES IN
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL
INTERNAL DRIVE STYLESLOT
THREAD CLASS2A A
THREAD QUANTITY PER INCH36
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 R34028?
R34028 is a SCREW,MACHINE.
What is the NSN for R34028?
R34028 is cataloged in the U.S. Government catalog under NSN 5305-01-239-2578. 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.