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Part Number

Part Number:
NSN:
NIIN:
Item Name:
SCREW , EXTERNALLY RELIEVED BODY

Definition:

AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, AND WHOSE UNTHREADED PORTION HAS BEEN MACHINED OR GROUND IN ONE OR MORE PLACES OR OVER ITS ENTIRE LENGTH TO A MAXIMUM DIAMETER LESS THAN THE MINIMUM PITCH DIAMETER OF THE THREAD (EXCLUDES UNDERCUT FOR THREAD RELIEF). IT IS NO. 0 (0.060 IN.) (1.5 MM) OR LARGER, AND IS DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) BUT MAY ALSO BE DESIGNED FOR EXTERNAL WRENCHING. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. SEE ALSO BOLT, EXTERNALLY RELIEVED BODY AND BOLT, INTERNAL WRENCHING.

CAGE Information

Code Company
61000 GLOBE FASTENERS INC

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AHYM NOMINAL THREAD DIAMETER 0.190 INCHES
SFTT SURFACE TREATMENT ZINC OVERALL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
ABQZ INTERNAL DRIVE STYLE SLOT
MATT MATERIAL STEEL CORROSION RESISTING OVERALL
AASK HEAD STYLE FILLISTER
AASU HEAD HEIGHT 0.165 INCHES MINIMUM AND 0.180 INCHES MAXIMUM
AAJD THREAD CLASS 3A
CSNG EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 1
AASA THREAD LENGTH 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AAWC FIRST DIAMETER FROM HEAD 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNF
AASL HEAD DIAMETER 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION ASTM B633 TY 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
CMLP THREAD QUANTITY PER INCH 32
AAWH DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM
AASB FASTENER LENGTH 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM

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