5305-01-137-7289 SCREW,MACHINE Index 5305-01-137-7291 SETSCREW

National Stock Number:
5306-01-137-7290

Federal Supply Class:
5306

National Item Identification Number:
011377290

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:
MS21095-301096906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FASTENER LENGTH1.016 INCHES MINIMUM AND 1.016 INCHES MINIMUM AND 1.062 INCHES MAXIMUM1.062 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEADFINISHED HEAD
GRIP LENGTH0.615 INCHES MINIMUM AND 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM0.635 INCHES MAXIMUM
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.109 INCHES MINIMUM AND 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM0.141 INCHES MAXIMUM
HEAD STYLEHEXAGONHEXAGON
LOCKING FEATUREPATCH OR PATCH OR PELLET OR PELLET OR STRIP THREADSSTRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALLMIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 431 OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.190 INCHES0.190 INCHES
WIDTH BETWEEN FLATS0.365 INCHES MINIMUM AND 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM0.377 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALLPASSIVATE OVERALL
THREAD CLASS3A3A
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
THREAD LENGTH0.381 INCHES MINIMUM AND 0.381 INCHES MINIMUM AND 0.447 INCHES MAXIMUM0.447 INCHES MAXIMUM
THREAD QUANTITY PER INCH3232
THREAD SERIES DESIGNATORUNFUNF


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