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Technical Data Sheet
PartsTable / COMPONENT / PB8-32SM8
PB8-32SM8 ✓ 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 STUD,SELF-LOCKING is a the manufacturer industrial component. Key specifications include material: STEEL, head_length: 0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN, thread_class: 3A NUT THREAD A, head_diameter: 0.220 INCHES NOMINAL IN, thread_length: 0.500 INCHES NOMINAL NUT THREAD IN, overall_length: 0.568 INCHES MINIMUM AND 0.588 INCHES MAXIMUM 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 5307-01-128-8240, 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
PB8-32SM8
NSN: 5307-01-128-8240
FSC: 5307
CAGE: 83324 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV ROSAN PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL
head_length0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
thread_class3A NUT THREAD A
head_diameter0.220 INCHES NOMINAL IN
thread_length0.500 INCHES NOMINAL NUT THREAD IN
overall_length0.568 INCHES MINIMUM AND 0.588 INCHES MAXIMUM IN
locking_featureHEAD DISTORTIONS
style_designatorSELF-LOCKING
thread_directionRIGHT-HAND NUT THREAD
surface_treatmentPASSIVATE OVERALL
head_minor_diameter0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
nominal_thread_size0.164 INCHES NUT THREAD IN
NSN5307-01-128-8240
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PB8-32SM8 · 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
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) NUT THREAD
•
HEAD LENGTH: 0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
•
MATERIAL: STEEL
•
HEAD MINOR DIAMETER: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SELF-LOCKING
•
LOCKING FEATURE: HEAD DISTORTIONS
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) NUT THREAD
HEAD LENGTH0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
MATERIALSTEEL
HEAD MINOR DIAMETER0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
STYLE DESIGNATORSELF-LOCKING
OVERALL LENGTH0.568 INCHES MINIMUM AND 0.588 INCHES MAXIMUM IN
LOCKING FEATUREHEAD DISTORTIONS
SURFACE TREATMENTPASSIVATE OVERALL
NOMINAL THREAD SIZE0.164 INCHES NUT THREAD IN
THREAD LENGTH0.500 INCHES NOMINAL NUT THREAD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
8738896Interchangeable
interchangeable cross-reference
interchangeable
2590001029810Interchangeable
interchangeable cross-reference
interchangeable
36653Interchangeable
interchangeable cross-reference
interchangeable
BCL4030BCInterchangeable
interchangeable cross-reference
interchangeable
34070DMQBInterchangeable
interchangeable cross-reference
interchangeable
CD4070BF/3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PB8-32SM8?
PB8-32SM8 is a STUD,SELF-LOCKING.
What parts can replace PB8-32SM8?
There are 8 known substitutes for PB8-32SM8: 8738896, 2590001029810, 36653 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PB8-32SM8?
PB8-32SM8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-01-128-8240. 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