5305-01-611-3121 SCREW,MACHINE 5305-01-611-2020 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-611-3105

Federal Supply Class:
5305

National Item Identification Number:
016113105

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
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.


Manufacturer Information:
AES01C750C25WA2D7105047THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
AES01C750C25WA2D712W888MCT INDUSTRIES, INC.


Techincal Specification:
FASTENER LENGTH3.250 INCHES NOMINAL
HEAD HEIGHT0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429,GRADE 5 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYFINISHED HEX BOLT
NOMINAL THREAD DIAMETER0.750 INCHES
SPECIAL FEATURESNO ADDITIONAL FEATURES NOTED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM F1491,FE/ZN,TY 3A ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.750 INCHES NOMINAL
THREAD QUANTITY PER INCH10
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH BETWEEN FLATS1.100 INCHES MINIMUM AND 1.125 INCHES MAXIMUM


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