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Part Number

Part Number:
NSN:
NIIN:
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
I9006 COMITE EUROPEEN DE NORMALISATION

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CQQR THREAD PITCH IN MILLIMETERS 2.5
AASA THREAD LENGTH 37.0 MILLIMETERS MINIMUM
AHYM NOMINAL THREAD DIAMETER 20.0 MILLIMETERS
AASB FASTENER LENGTH 44.5 MILLIMETERS MINIMUM AND 45.5 MILLIMETERS MAXIMUM
MDCL MATERIAL DOCUMENT AND CLASSIFICATION ISO 898-1 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
SFTT SURFACE TREATMENT ZINC OVERALL AND CHROMATE OVERALL
AASU HEAD HEIGHT 12.5 MILLIMETERS NOMINAL
MATT MATERIAL STEEL PROPERTY CLASS 8.8 OVERALL
AAJF THREAD DIRECTION RIGHT-HAND
CQWR EXTERNAL THREAD TOLERANCE CLASS 6G
AASK HEAD STYLE HEXAGON
AATB WIDTH BETWEEN FLATS 29.16 MILLIMETERS MINIMUM AND 29.67 MILLIMETERS MAXIMUM
THSD THREAD SERIES DESIGNATOR M
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION ISO 4042 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL

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