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


Click here to Register for Free 30-day Trial