5305-01-091-3488 SCREW,MACHINE Index 5306-01-091-3491 BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5305-01-091-3490

Federal Supply Class:
5305

National Item Identification Number:
010913490

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:
SC10-429440W. M. BERG INC


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.188 INCHES NOMINAL
FASTENER LENGTH0.234 INCHES NOMINAL
MATERIALCOPPER ALLOY POINT
STEEL FASTENER
SURFACE TREATMENTOXIDE FASTENER
HARDNESS RATING48.0 ROCKWELL C MINIMUM AND
52.0 ROCKWELL C MAXIMUM FASTENER
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.125 INCHES NOMINAL
POINT STYLEHALF DOG


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