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DIN933-M12X25-8,8-A3L — Technical Data Sheet

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— · 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 SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 8.8 OVERALL, head_style: HEXAGON, head_height: 7.32 MILLIMETERS MINIMUM AND 7.68 MILLIMETERS MAXIMUM MM, thread_length: 21.0 MILLIMETERS MINIMUM AND 25.0 MILLIMETERS MAXIMUM MM, fastener_length: 25.00 MILLIMETERS NOMINAL MM, hardness_rating: 18.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5305-01-155-5440, 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
DIN933-M12X25-8,8-A3L
NSN: 5305-01-155-5440
FSC: 5305
CAGE: D8286 — DIN DEUTSCHES INSTITUT FUR NORMUNG EV (DEU)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 8.8 OVERALL
head_styleHEXAGON
head_height7.32 MILLIMETERS MINIMUM AND 7.68 MILLIMETERS MAXIMUM MM
thread_length21.0 MILLIMETERS MINIMUM AND 25.0 MILLIMETERS MAXIMUM MM
fastener_length25.00 MILLIMETERS NOMINAL MM
hardness_rating18.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_between_flats18.67 MILLIMETERS MINIMUM AND 19.00 MILLIMETERS MAXIMUM MM
nominal_thread_diameter12.0 MILLIMETERS MM
minimum_tensile_strength113784 POUNDS PER SQUARE INCH LBS
thread_series_designatorM
NSN5305-01-155-5440
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: DIN933-M12X25-8,8-A3L · 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 DIRECTION: RIGHT-HAND
•
THREAD PITCH IN MILLIMETERS: 2.0
•
THREAD SERIES DESIGNATOR: M
•
MATERIAL: STEEL PROPERTY CLASS 8.8 OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
•
THREAD LENGTH: 21.0 MILLIMETERS MINIMUM AND 25.0 MILLIMETERS MAXIMUM MM
•
HEAD HEIGHT: 7.32 MILLIMETERS MINIMUM AND 7.68 MILLIMETERS MAXIMUM MM
•
HARDNESS RATING: 18.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS
THREAD DIRECTIONRIGHT-HAND
THREAD PITCH IN MILLIMETERS2.0
THREAD SERIES DESIGNATORM
MATERIALSTEEL PROPERTY CLASS 8.8 OVERALL
SURFACE TREATMENTZINC OVERALL
THREAD LENGTH21.0 MILLIMETERS MINIMUM AND 25.0 MILLIMETERS MAXIMUM MM
HEAD HEIGHT7.32 MILLIMETERS MINIMUM AND 7.68 MILLIMETERS MAXIMUM MM
HARDNESS RATING18.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER12.0 MILLIMETERS MM
WIDTH BETWEEN FLATS18.67 MILLIMETERS MINIMUM AND 19.00 MILLIMETERS MAXIMUM MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
7840InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9100-0098InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
M12X25DIN933-M8.8A3GInterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
C0718107300InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
ISO4017InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
KHV218X12A-250 ITEM 32InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DIN933-M12X25-8,8-A3L?
DIN933-M12X25-8,8-A3L is a SCREW,CAP,HEXAGON HEAD.
What parts can replace DIN933-M12X25-8,8-A3L?
There are 8 known substitutes for DIN933-M12X25-8,8-A3L: 7840, 9100-0098, M12X25DIN933-M8.8A3G and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DIN933-M12X25-8,8-A3L?
DIN933-M12X25-8,8-A3L is cataloged in the Federal Logistics Information System under NSN 5305-01-155-5440. 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.
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Last verified: October 2026