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National Stock Number: 5305-00-207-0728
Federal Supply Class: 5305
National Item Identification Number: 002070728
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.
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Techincal Specification:
FASTENER LENGTH | 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM | FEATURES PROVIDED | CASEHARDENED | HARDNESS RATING | 30.0 ROCKWELL C MINIMUM OVERALL AND 37.0 ROCKWELL C MAXIMUM OVERALL | HEAD HEIGHT | 0.245 INCHES NOMINAL | HEAD STYLE | SQUARE | NOMINAL THREAD DIAMETER | 0.312 INCHES | INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE | MATERIAL | STEEL OVERALL | POINT CHAMFER ANGLE | 58.0 DEGREES MINIMUM AND 62.0 DEGREES MAXIMUM | POINT LENGTH | 0.182 INCHES NOMINAL | POINT STYLE | FLAT | WIDTH BETWEEN FLATS | 0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM | THREAD QUANTITY PER INCH | 18 | THREAD SERIES DESIGNATOR | UNC |
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