5306-01-331-7186 BOLT,MACHINE Index 5305-01-331-7188 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-331-7187

Federal Supply Class:
5306

National Item Identification Number:
013317187

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:
B1821BH063F113L80204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
MS90727-159L96906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FASTENER LENGTH1.063 INCHES MINIMUM AND 1.125 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM FASTENER
HEAD HEIGHT0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM
HEAD STYLEHEXAGON
LOCKING FEATUREPATCH OR PELLET THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429 GR 8 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATERIALPLASTIC POLYAMIDE NYLON LOCKING FEATURE
MATERIALSTEEL FASTENER
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.625 INCHES
NONDEFINITIVE SPEC/STD DATAY2 PART AND 10P STYLE AND 8 GRADE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 TY 2 FE/ZN 5 ASSN STD SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENTZINC AND CHROMATE FASTENER
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.888 INCHES MINIMUM AND 1.125 INCHES MAXIMUM
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNF
WIDTH BETWEEN FLATS0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM


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