5305-01-309-1520 THUMBSCREW Index 5305-01-309-1522 SCREW ASSEMBLY,PANEL

National Stock Number:
5305-01-309-1521

Federal Supply Class:
5305

National Item Identification Number:
013091521

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:
1560327646WARN INDUSTRIES, INC.
1560327647WARN INDUSTRIES INC
2155W08303LAKE REGION DEVELOPMENT CO INC BRADFORD MACHINE TOOL DIV
703-2298086 PIECE 1180064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.860 INCHES MINIMUM AND
3.000 INCHES MAXIMUM
FASTENER LENGTH3.000 INCHES NOMINAL
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTZINC OR
CADMIUM OVERALL
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.365 INCHES MINIMUM AND
0.375 INCHES MAXIMUM
HEAD HEIGHT0.244 INCHES MINIMUM AND
0.250 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.188 INCHES NOMINAL


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