5305-01-185-3625 SCREW,MACHINE Index 5306-01-185-3627 BOLT,SELF-LOCKING

National Stock Number:
5306-01-185-3626

Federal Supply Class:
5306

National Item Identification Number:
011853626

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:
MS35764-100496906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FASTENER LENGTH0.845 INCHES MINIMUM AND 0.875 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
HEAD STYLEHEXAGON
LOCKING FEATUREDISTORTIONS HEAD
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TYPE 2 CLASS 2 FED SPEC 1ST TREATMENT RESPONSE AND MIL-P-16232 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND PHOSPHATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.750 INCHES NOMINAL
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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