5340-01-234-7537 COUPLING,CLAMP,GROOVED Index 5305-01-234-7539 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-234-7538

Federal Supply Class:
5306

National Item Identification Number:
012347538

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:
NAS568-10580205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH3.265 INCHES MINIMUM AND
3.312 INCHES MAXIMUM
MATERIALSTEEL COMP 8740 OR
STEEL COMP 4140 OR
STEEL COMP 8630 OR
STEEL COMP 8735 OR
STEEL COMP 4130 OR
STEEL COMP 4037 OVERALL
THREAD LENGTH3.205 INCHES MINIMUM AND
3.282 INCHES MAXIMUM
HEAD STYLEHEXAGON
THREAD SERIES DESIGNATORUNJF
NOMINAL THREAD DIAMETER0.500 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND
40.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.365 INCHES MINIMUM AND
0.385 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.740 INCHES MINIMUM AND
0.752 INCHES MAXIMUM
HOLE CONFIGURATION STYLEHEXAGON CORNERS
HOLE TYPEDRILLED
HOLE QUANTITY3
HOLE DIAMETER0.070 INCHES MINIMUM AND
0.080 INCHES MAXIMUM
GRIP LENGTH0.030 INCHES MINIMUM AND
0.060 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
SPECIFICATION/STANDARD DATA80205-NAS568 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD


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