5305-00-490-4581 SCREW,MACHINE Index 5360-00-490-4586 SPRING,HELICAL,COMPRESSION

National Stock Number:
5306-00-490-4584

Federal Supply Class:
5306

National Item Identification Number:
004904584

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:
LE20034-604348LAWRENCE ENGINEERING AND SUPPLY INC
MS20034-606950HOWMET GLOBAL FASTENING SYSTEMS INC
MS20034-617446HUCK INTERNATIONAL, INC
MS20034-656878SPS TECHNOLOGIES, LLC
MS20034-675497LAMSON AND SESSIONS CO THE
MS20034-680205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NASM787480205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
MS20034-680539SPS TECHNOLOGIES, LLC
MS20034-692215HOWMET GLOBAL FASTENING SYSTEMS INC
MS20034-696906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS20034-697928HUCK INTL INC


Techincal Specification:
FASTENER LENGTH1.250 INCHES MINIMUM AND 1.297 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM
HARDNESS RATING27.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH63.0 MICROINCHES GRIP
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.484 INCHES MINIMUM AND 0.563 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNJF


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