5305-01-035-2288 SCREW,CAP,SOCKET HEAD Index 5310-01-035-2290 NUT ASSEMBLY,SELF-LOCKING,GANG C

National Stock Number:
5306-01-035-2289

Federal Supply Class:
5306

National Item Identification Number:
010352289

Description:
BOLT,EXTERNALLY RELIEVED BODY

Detail:
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 undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.


Manufacturer Information:
355-0131-0080009TEKTRONIX, INC.


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.150 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY2
FASTENER LENGTH0.450 INCHES NOMINAL
FIRST DIAMETER FROM HEAD0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD HEIGHT0.100 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIALCOPPER ALLOY 360 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SECOND DIAMETER FROM HEAD0.185 INCHES MINIMUM AND 0.203 INCHES MAXIMUM
SPECIAL FEATURESTHREADED CONCETRIC HOLE IN HEAD 0.164-32 UNC 2B BY 0.125 IN. MIN DEEP. 0.161 IN. DIA CONCENTRIC HOLE IN THREADED END 0.400 IN LG
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B456 ASSN STD ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENTNICKEL AND CHROMIUM OVERALL
THREAD LENGTH0.180 INCHES NOMINAL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28
WIDTH BETWEEN FLATS0.375 INCHES NOMINAL


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