5305-00-402-6257 SCREW,MACHINE Index 5305-00-402-6261 THUMBSCREW

National Stock Number:
5305-00-402-6258

Federal Supply Class:
5305

National Item Identification Number:
004026258

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:
6132805032289944ELBITAMERICA, INC.


Techincal Specification:
FASTENER LENGTH0.328 INCHES MINIMUM AND 0.360 INCHES MAXIMUM
HEAD DIAMETER0.154 INCHES MINIMUM AND 0.161 INCHES MAXIMUM
HEAD HEIGHT0.095 INCHES MINIMUM AND 0.099 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLESIX SPLINE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-763 FED SPEC 3RD MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OVERALL
NOMINAL THREAD DIAMETER0.099 INCHES
SPLINE MAJOR DIAMETER0.097 INCHES MINIMUM AND 0.098 INCHES MAXIMUM
SPLINE MINOR DIAMETER0.080 INCHES MINIMUM AND 0.082 INCHES MAXIMUM
SPLINE WIDTH0.021 INCHES MINIMUM AND 0.022 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.286 INCHES MINIMUM AND 0.360 INCHES MAXIMUM
THREAD QUANTITY PER INCH48
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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