5306-00-591-9333 BOLT,MACHINE Index 5305-00-591-9343 SCREW,MACHINE

National Stock Number:
5305-00-591-9340

Federal Supply Class:
5305

National Item Identification Number:
005919340

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:
869584719207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
FASTENER LENGTH0.250 INCHES NOMINAL
FEATURES PROVIDEDCASEHARDENED
HARDNESS RATING58.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLEHEXAGON
LOCKING FEATUREKNURLED THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
POINT STYLECUP
WIDTH ACROSS FLATS0.125 INCHES NOMINAL
SURFACE TREATMENTPHOSPHATE OVERALL
THREAD CLASS3A
THREAD LENGTH0.250 INCHES MAXIMUM
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28


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