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Technical Data Sheet
PartsTable / COMPONENT / 312-35018
312-35018 ✓ 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 SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEADLESS (SETSCREW), point_style: HALF DOG, thread_class: 2A A, thread_length: 0.514 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN, fastener_length: 0.625 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 5305-00-022-3334, 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
312-35018
NSN: 5305-00-022-3334
FSC: 5305
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEADLESS (SETSCREW)
point_styleHALF DOG
thread_class2A A
thread_length0.514 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
fastener_length0.625 INCHES NOMINAL IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
width_across_flats0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.625 INCHES IN
thread_quantity_per_inch18
NSN5305-00-022-3334
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 312-35018 · 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
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
HEAD STYLE: HEADLESS (SETSCREW)
•
WIDTH ACROSS FLATS: 0.312 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
•
POINT STYLE: HALF DOG
•
THREAD SERIES DESIGNATOR: UNF
•
MATERIAL: STEEL OVERALL
•
THREAD QUANTITY PER INCH: 18
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD STYLEHEADLESS (SETSCREW)
WIDTH ACROSS FLATS0.312 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
POINT STYLEHALF DOG
THREAD SERIES DESIGNATORUNF
MATERIALSTEEL OVERALL
THREAD QUANTITY PER INCH18
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
FASTENER LENGTH0.625 INCHES NOMINAL IN
THREAD CLASS3A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
FFS103TYPE3STYLE6Interchangeable
interchangeable cross-reference
interchangeable
223042Interchangeable
interchangeable cross-reference
interchangeable
223150Interchangeable
interchangeable cross-reference
interchangeable
S4700H3163714REVAPC15Interchangeable
interchangeable cross-reference
interchangeable
N52606PC15Interchangeable
interchangeable cross-reference
interchangeable
N52472PC15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 312-35018?
312-35018 is a SETSCREW.
What parts can replace 312-35018?
There are 16 known substitutes for 312-35018: FFS103TYPE3STYLE6, 223042, 223150 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 312-35018?
312-35018 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-022-3334. 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