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Technical Data Sheet
PartsTable / COMPONENT / 16T2628
16T2628 ✓ 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 BOLT,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1018 OVERALL, head_style: BUTTON, neck_width: 0.750 INCHES NOMINAL IN, head_height: 0.375 INCHES NOMINAL IN, neck_length: 0.469 INCHES NOMINAL IN, thread_class: 2A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-496-2224, 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
16T2628
NSN: 5306-00-496-2224
FSC: 5306
CAGE: 81336 — CHIEF OF ENGINEERS DEPT OF ARMY (USA)
SPECIFICATIONS
materialSTEEL COMP 1018 OVERALL
head_styleBUTTON
neck_width0.750 INCHES NOMINAL IN
head_height0.375 INCHES NOMINAL IN
neck_length0.469 INCHES NOMINAL IN
thread_class2A A
head_diameter1.562 INCHES NOMINAL IN
thread_length3.000 INCHES NOMINAL IN
fastener_length5.500 INCHES NOMINAL IN
hardness_rating9.0 ROCKWELL C NOMINAL OVERALL
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE OVERALL
NSN5306-00-496-2224
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 16T2628 · 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
•
NECK LENGTH: 0.469 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.375 INCHES NOMINAL IN
•
THREAD LENGTH: 3.000 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNF
•
THREAD DIRECTION: RIGHT-HAND
•
SURFACE TREATMENT: PHOSPHATE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
HARDNESS RATING: 9.0 ROCKWELL C NOMINAL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NECK LENGTH0.469 INCHES NOMINAL IN
HEAD HEIGHT0.375 INCHES NOMINAL IN
THREAD LENGTH3.000 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNF
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTPHOSPHATE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING9.0 ROCKWELL C NOMINAL OVERALL
MINIMUM YIELD STRENGTH39000 POUNDS PER SQUARE INCH LBS
THREAD QUANTITY PER INCH16
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
T55Interchangeable
interchangeable cross-reference
interchangeable
9DInterchangeable
interchangeable cross-reference
interchangeable
600Interchangeable
interchangeable cross-reference
interchangeable
55-5Interchangeable
interchangeable cross-reference
interchangeable
3925Interchangeable
interchangeable cross-reference
interchangeable
55Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 16T2628?
16T2628 is a BOLT,SQUARE NECK.
What parts can replace 16T2628?
There are 13 known substitutes for 16T2628: T55, 9D, 600 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 16T2628?
16T2628 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-496-2224. 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