5306-00-285-1239 BOLT,EXTERNALLY RELIEVED BODY Index 5305-00-285-1246 SCREW,TAPPING

National Stock Number:
5305-00-285-1243

Federal Supply Class:
5305

National Item Identification Number:
002851243

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:
594109019207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
594109083395CONSOLIDATED WELDING AND ENGINEERING CO
852702318876U S ARMY AVIATION AND MISSILE COMMAND
595109024617GENERAL MOTORS CORP
595109073331GENERAL MOTORS CORP FISHER GUIDE DIV
594109091340MET-PRO CORPORATION


Techincal Specification:
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
FASTENER LENGTH0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM
HEAD DIAMETER0.359 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
HEAD STYLEOVAL COUNTERSUNK
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
MATERIALSTEEL COMP 1010 OR STEEL COMP 1020 OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES
POINT CHAMFER ANGLE20.0 DEGREES MINIMUM AND 22.5 DEGREES MAXIMUM
POINT LENGTH0.078 INCHES MINIMUM AND 0.107 INCHES MAXIMUM
POINT STYLEFLAT
SURFACE TREATMENTDICHROMATE ZINC OVERALL
THREAD LENGTH0.175 INCHES MINIMUM AND 0.266 INCHES MAXIMUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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