5305-00-286-0476 SCREW,TAPPING Index 5306-00-286-0481 BOLT,U

National Stock Number:
5305-00-286-0478

Federal Supply Class:
5305

National Item Identification Number:
002860478

Description:
SETSCREW

Detail:
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
40773382577RAYTHEON COMPANY


Techincal Specification:
FASTENER LENGTH0.297 INCHES NOMINAL
HARDNESS RATING93.9 ROCKWELL B MINIMUM AND 99.0 ROCKWELL B MAXIMUM OVERALL
HEAD DIAMETER0.312 INCHES NOMINAL
HEAD HEIGHT0.086 INCHES MINIMUM AND 0.102 INCHES MAXIMUM
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLESLOT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS 6,TYPE A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 416 OVERALL
MINIMUM TENSILE STRENGTH170000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.164 INCHES
POINT DIAMETER0.122 INCHES MINIMUM AND 0.123 INCHES MAXIMUM
POINT LENGTH0.194 INCHES MINIMUM AND 0.204 INCHES MAXIMUM
POINT STYLEFLAT
POINT CHAMFER ANGLE45.0 DEGREES NOMINAL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.093 INCHES MAXIMUM
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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