5305-01-064-7762 SCREW,MACHINE Index 5305-01-064-7765 SCREW,CAP,SOCKET HEAD

National Stock Number:
5306-01-064-7763

Federal Supply Class:
5306

National Item Identification Number:
010647763

Description:
BOLT,INTERNAL WRENCHING

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also SCREW, CAP, SOCKET HEAD. Excludes SETSCREW; SCREW, SHOULDER; BOLT, SHOULDER; SCREW, EXTERNALLY RELIEVED BODY; BOLT, EXTERNALLY RELIEVED BODY; and SCREW, MACHINE.


Manufacturer Information:
MS20004-2396906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.475 INCHES MINIMUM AND
0.525 INCHES MAXIMUM
FASTENER LENGTH1.922 INCHES MINIMUM AND
1.952 INCHES MAXIMUM
MATERIALSTEEL COMP 4140 OR
STEEL COMP E4340 OR
STEEL COMP 6150 OR
STEEL COMP 8735 OR
STEEL COMP 8740 OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND
40.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLEBEVEL-CONICAL
HEAD DIAMETER0.428 INCHES MINIMUM AND
0.438 INCHES MAXIMUM
HEAD HEIGHT0.240 INCHES MINIMUM AND
0.260 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.188 INCHES MINIMUM AND
0.190 INCHES MAXIMUM
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS20004-23


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