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Technical Data Sheet
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3211126 — Technical Data Sheet

✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.562 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 1.125 INCHES MINIMUM IN, fastener_length: 4.938 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System under NSN 5306-00-274-1925, 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
3211126
NSN: 5306-00-274-1925
FSC: 5306
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.562 INCHES NOMINAL IN
thread_class3A A
thread_length1.125 INCHES MINIMUM IN
fastener_length4.938 INCHES NOMINAL IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL
special_featuresSIX 90.0 DEG NOTCHES CUT IN CORNERS OF HEX TO INDICATE HEAT TREATED ALLOY
thread_directionRIGHT-HAND
features_providedUNFINISHED HEAD
width_between_flats1.125 INCHES NOMINAL IN
nominal_thread_diameter0.750 INCHES IN
NSN5306-00-274-1925
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3211126 · 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
•
WIDTH BETWEEN FLATS: 1.125 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.562 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
FASTENER LENGTH: 4.938 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 16
•
FEATURES PROVIDED: UNFINISHED HEAD
•
SHANK UNTHREADED HOLE DIAMETER: 0.157 INCHES NOMINAL FIRST HOLE IN
•
THREAD LENGTH: 1.125 INCHES MINIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH BETWEEN FLATS1.125 INCHES NOMINAL IN
HEAD HEIGHT0.562 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH4.938 INCHES NOMINAL IN
THREAD QUANTITY PER INCH16
FEATURES PROVIDEDUNFINISHED HEAD
SHANK UNTHREADED HOLE DIAMETER0.157 INCHES NOMINAL FIRST HOLE IN
THREAD LENGTH1.125 INCHES MINIMUM IN
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER4.688 INCHES NOMINAL FIRST HOLE IN
NOMINAL THREAD DIAMETER0.750 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
7295InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3224450InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
13291InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3211126?
3211126 is a BOLT,MACHINE.
What parts can replace 3211126?
There are 3 known substitutes for 3211126: 7295, 3224450, 13291. Substitute compatibility should be verified for your specific system.
Is 3211126 still available?
3211126 is currently cancelled.
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Last verified: September 2026