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Part Number

Part Number:
NSN:
NIIN:
Item Name:
BOLT , MACHINE

Definition:

AN EXTERNALLY THREADED FASTENER DESIGNED FOR INSERTION THROUGH HOLES IN ASSEMBLED PARTS AND NORMALLY INTENDED TO BE TIGHTENED OR RELEASED BY TORQUING A NUT. THE THREADED AND UNTHREADED PORTIONS ARE BOTH OF ONE NOMINAL DIAMETER OF 0.190 INCH (5 MM) OR LARGER. THE HEAD IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER OR BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. HEAD DIMENSIONS AND SIZES OF THREADED AND UNTHREADED PORTIONS SHALL CONFORM TO INTERNATIONALLY RECOGNIZED FASTENER STANDARDS. FOR ITEMS HAVING A GRIP LENGTH PORTION MACHINED TO A TOLERANCE OF 0.0015 INCH (0.038 MM) OR LESS, BOLT, SHEAR. SEE ALSO SCREW, CAP, HEXAGON HEAD AND SCREW, MACHINE.

CAGE Information

Code Company
24617 GENERAL MOTORS CORP

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CQFM HARDNESS RATING 23.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION 300 M. EUCLID DIV. GENERAL MOTOR CORP MFR REF SINGLE MATERIAL RESPONSE OVERALL
CBBL FEATURES PROVIDED FINISHED HEAD
AASU HEAD HEIGHT 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM
AASA THREAD LENGTH 1.125 INCHES MINIMUM AND 1.312 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
CMLP THREAD QUANTITY PER INCH 14
AAUM LOCKING FEATURE DISTORTIONS BEARING SURFACE OF HEAD
MATT MATERIAL STEEL OVERALL
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
CQBC MINIMUM TENSILE STRENGTH 125000 POUNDS PER SQUARE INCH
AASK HEAD STYLE HEXAGON
AHYM NOMINAL THREAD DIAMETER 0.438 INCHES
AASB FASTENER LENGTH 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM
AATB WIDTH BETWEEN FLATS 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM

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