5306-01-245-3826 BOLT,MACHINE Index 5305-01-245-3828 SCREW,TAPPING

National Stock Number:
5306-01-245-3827

Federal Supply Class:
5306

National Item Identification Number:
012453827

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:
MS35764-132196906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH1.710 INCHES MINIMUM AND
1.750 INCHES MAXIMUM
MATERIALSTEEL OVERALL
THREAD LENGTH0.960 INCHES MINIMUM AND
1.438 INCHES MAXIMUM
HEAD STYLEDISTORTED HEAD
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS2A
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GR 8 ASSN STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND
38.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.250 INCHES MINIMUM AND
0.260 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.612 INCHES MINIMUM AND
0.625 INCHES MAXIMUM
LOCKING FEATUREDISTORTIONS TOP OF HEAD
GRIP LENGTH0.312 INCHES MINIMUM AND
0.750 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
CRITICALITY CODE JUSTIFICATIONFEAT
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS35764-1321


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