5306-01-300-6366 BOLT,SHEAR Index 5305-01-300-6368 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-300-6367

Federal Supply Class:
5305

National Item Identification Number:
013006367

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:
6242923-7453711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.886 INCHES MINIMUM AND
1.000 INCHES MAXIMUM
FASTENER LENGTH0.969 INCHES MINIMUM AND
1.000 INCHES MAXIMUM
MATERIALSTEEL OVERALL
SURFACE TREATMENTCERAMIC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-81751 TY 1 CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
COLORGRAY/GREY OVERALL
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND
45.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.550 INCHES MINIMUM AND
0.562 INCHES MAXIMUM
HEAD HEIGHT0.368 INCHES MINIMUM AND
0.375 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.312 INCHES MINIMUM AND
0.316 INCHES MAXIMUM


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