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Technical Data Sheet
PartsTable / COMPONENT / 34S(.125)ST12
34S(.125)ST12 ✓ 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 34S(.125)ST12 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-01-185-4759, 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
34S(.125)ST12
NSN: 5307-01-185-4759
FSC: 5307
CAGE: 86577 — PRECISION METAL PRODUCTS CO (USA)
SPECIFICATIONS
Part Number34S(.125)ST12
NSN5307-01-185-4759
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 34S(.125)ST12 · 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 LENGTH: 0.117 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE
•
LOCKING FEATURE: SELF-CLINCHING HEAD
•
THREAD QUANTITY PER INCH: 40 NUT THREAD
•
NOMINAL THREAD SIZE: 0.112 INCHES NUT THREAD IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) NUT THREAD
•
MATERIAL: STEEL COMP 303
TECHNICAL CHARACTERISTICS (FLIS)
HEAD LENGTH0.117 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE
LOCKING FEATURESELF-CLINCHING HEAD
THREAD QUANTITY PER INCH40 NUT THREAD
NOMINAL THREAD SIZE0.112 INCHES NUT THREAD IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) NUT THREAD
MATERIALSTEEL COMP 303
OVERALL LENGTH0.500 INCHES NOMINAL IN
THREAD LENGTH0.375 INCHES NOMINAL NUT THREAD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
L212781-2Interchangeable
interchangeable cross-reference
interchangeable
7227Interchangeable
interchangeable cross-reference
interchangeable
TYPE900DP5TInterchangeable
interchangeable cross-reference
interchangeable
PR3004Interchangeable
interchangeable cross-reference
interchangeable
7003Interchangeable
interchangeable cross-reference
interchangeable
ASME B16.39Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 34S(.125)ST12?
34S(.125)ST12 is a 34S(.125)ST12.
What parts can replace 34S(.125)ST12?
There are 22 known substitutes for 34S(.125)ST12: L212781-2, 7227, TYPE900DP5T and 19 more. Substitute compatibility should be verified for your specific system.
Is 34S(.125)ST12 still available?
34S(.125)ST12 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026