5305-00-584-7629 SETSCREW Index 5306-00-584-7631 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-00-584-7630

Federal Supply Class:
5306

National Item Identification Number:
005847630

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.


Manufacturer Information:
NAS428H6-2280205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NAS428H6A-2280205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH2.250 INCHES NOMINAL
MATERIALSTEEL COMP 4037 OR
STEEL COMP 4130 OR
STEEL COMP 8630 OR
STEEL COMP 8735 OR
STEEL COMP 8740 OR
STEEL COMP 4140 OVERALL
THREAD LENGTH2.188 INCHES MINIMUM AND
2.219 INCHES MAXIMUM
HEAD STYLECROWNED HEXAGON
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY2,CL3 FED SPEC ALL TREATMENT RESPONSES OVERALL
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND
32.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.203 INCHES NOMINAL
WIDTH BETWEEN FLATS0.563 INCHES NOMINAL
HOLE CONFIGURATION STYLEHEXAGON FLATS
HOLE TYPEDRILLED
HOLE QUANTITY1
HOLE DIAMETER0.070 INCHES NOMINAL
GRIP LENGTH0.031 INCHES MINIMUM AND
0.062 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD


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