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PartsTable / COMPONENT / M2020U
M2020U ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.500 INCHES NOMINAL IN, thread_length: 0.221 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, screw_material: STEEL, fastener_length: 0.332 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-367-6225, 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
M2020U
NSN: 5305-00-367-6225
FSC: 5305
CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class3A A
head_diameter0.500 INCHES NOMINAL IN
thread_length0.221 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
screw_materialSTEEL
fastener_length0.332 INCHES NOMINAL IN
hardness_rating23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.312 INCHES IN
screw_surface_treatmentCADMIUM
NSN5305-00-367-6225
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: M2020U · 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
•
SCREW MATERIAL: STEEL
•
THREAD LENGTH: 0.221 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: CADMIUM
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 18
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: SAE J429 ASSN STD ALL MATERIAL RESPONSES
•
HEAD STYLE: FLAT COUNTERSUNK
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
SCREW MATERIALSTEEL
THREAD LENGTH0.221 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTCADMIUM
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH18
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429 ASSN STD ALL MATERIAL RESPONSES
HEAD STYLEFLAT COUNTERSUNK
NOMINAL THREAD DIAMETER0.312 INCHES IN
THREAD CLASS3A A
MINIMUM TENSILE STRENGTH120000 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
A13512Interchangeable
interchangeable cross-reference
interchangeable
WR9-1571Interchangeable
interchangeable cross-reference
interchangeable
830CInterchangeable
interchangeable cross-reference
interchangeable
A1352Interchangeable
interchangeable cross-reference
interchangeable
135069Interchangeable
interchangeable cross-reference
interchangeable
352-00Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M2020U?
M2020U is a SCREW,MACHINE.
What parts can replace M2020U?
There are 6 known substitutes for M2020U: A13512, WR9-1571, 830C and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M2020U?
M2020U is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-367-6225. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026