5306-00-543-5659 BOLT,MACHINE Index 5310-00-543-5661 WASHER,FLAT

National Stock Number:
5305-00-543-5660

Federal Supply Class:
5305

National Item Identification Number:
005435660

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.


Manufacturer Information:
MS35458-3296906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FASTENER LENGTH0.625 INCHES NOMINAL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.429 INCHES MINIMUM AND 0.437 INCHES MAXIMUM
HEAD HEIGHT0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH130000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
WIDTH ACROSS FLATS0.218 INCHES MINIMUM AND 0.220 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 TY 2 CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.625 INCHES MINIMUM
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNF


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