5305-01-437-2683 SCREW,MACHINE Index 5305-01-437-2685 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-437-2684

Federal Supply Class:
5305

National Item Identification Number:
014372684

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:
593-6960604 PC853711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
FASTENER LENGTH1.380 INCHES NOMINAL
HEAD HEIGHT0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
HEAD STYLEHEXAGON
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL COMP 316 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.380 INCHES NOMINAL
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF
WIDTH ACROSS FLATS0.188 INCHES NOMINAL
WIDTH BETWEEN FLATS0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM


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