6625-01-628-9977 METER,ARBITRARY SCALE 5998-01-628-9979 CIRCUIT CARD ASSEMBLY

National Stock Number:
5305-01-628-9978

Federal Supply Class:
5305

National Item Identification Number:
016289978

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:
92805A53739428MCMASTER-CARR SUPPLY CO
92805A53751QX6THE SOCKET SOURCE, INC.


Techincal Specification:
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
FASTENER LENGTH0.500 INCHES NOMINAL
HEAD DIAMETER0.531 INCHES NOMINAL
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SPECIAL FEATURESNYLON PATCH BONDED TO THREADS PREVENTS LOOSENING
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.339 INCHES NOMINAL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH20
WIDTH ACROSS FLATS0.156 INCHES NOMINAL


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