5305-01-609-3684 SCREW,MACHINE 5305-01-609-3985 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-609-3746

Federal Supply Class:
5305

National Item Identification Number:
016093746

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:
91253A1443A054MCMASTER-CARR SUPPLY CO


Techincal Specification:
COLORBLACK OVERALL
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
EXTERNAL THREAD TOLERANCE CLASS6
FASTENER LENGTH0.250 INCHES NOMINAL
HEAD DIAMETER0.307 INCHES NOMINAL
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHEXAGON
PART NAME ASSIGNED BY CONTROLLING AGENCYBLACK OXIDE ALLOY STEEL FLAT SOCKET HEAD CAP SCREW
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.138 INCHES
SURFACE TREATMENTBLACK CHEMICAL FINISH OVERALL
THREAD CLASSCOURSE
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.153 INCHES NOMINAL
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.078 INCHES NOMINAL


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