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Part Number

Part Number:
NSN:
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Item Name:
SCREW , CAP , HEXAGON HEAD

Definition:

AN EXTERNALLY THREADED FASTENER DESIGNED FOR INSERTION INTO HOLES IN ASSEMBLED PARTS, FOR MATING WITH A PREFORMED INTERNAL THREAD AND FOR TIGHTENING OR RELEASING BY TORQUING THE HEAD. THE THREADED AND UNTHREADED PORTIONS ARE BOTH OF THE SAME NOMINAL DIAMETER OF 0.190 INCH (5 MM) OR LARGER. HEAD DIMENSIONS AND SIZES OF THREADED AND UNTHREADED PORTIONS SHALL CONFORM TO INTERNATIONALLY RECOGNIZED FASTENER STANDARDS. THE THREAD LENGTH BEING THE CONTROLLED DIMENSION, THE GRIP LENGTH IS NOT SPECIFIED. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; AND SCREW, CAP, SOCKET HEAD.

CAGE Information

Code Company
61208 TWIN DISC INCORPORATED

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
ZZZT NONDEFINITIVE SPEC/STD DATA 10P STYLE AND 2 TYPE AND 2 GRADE
ZZZT NONDEFINITIVE SPEC/STD DATA 10P STYLE AND 2 TYPE AND 2 GRADE
CSYM SURFACE FINISH 125.0 MICROINCHES GRIP
CSYM SURFACE FINISH 63.0 MICROINCHES THREADS
AAJF THREAD DIRECTION RIGHT-HAND
CSYM SURFACE FINISH 125.0 MICROINCHES BEARING SURFACE OF HEAD
MDCL MATERIAL DOCUMENT AND CLASSIFICATION SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATT MATERIAL STEEL OVERALL
CQFM HARDNESS RATING 80.0 ROCKWELL B MINIMUM OVERALL AND 100.0 ROCKWELL B MAXIMUM OVERALL
CMLP THREAD QUANTITY PER INCH 16
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
AASK HEAD STYLE HEXAGON
AASA THREAD LENGTH 1.000 INCHES MINIMUM
CQBC MINIMUM TENSILE STRENGTH 74000 POUNDS PER SQUARE INCH
AASB FASTENER LENGTH 3.250 INCHES NOMINAL
AHYM NOMINAL THREAD DIAMETER 0.375 INCHES
AATB WIDTH BETWEEN FLATS 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
AASU HEAD HEIGHT 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM

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