5305-01-049-4022 SETSCREW Index 5305-01-049-4025 SETSCREW

National Stock Number:
5305-01-049-4024

Federal Supply Class:
5305

National Item Identification Number:
010494024

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:
125300-209205LOCKHEED MARTIN CORP ELECTRONICS AND MISSILES DIV


Techincal Specification:
FASTENER LENGTH0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES
SPECIAL FEATURES3 SLOTS ON CIRCUMFERENCE OF HEAD 120 DEGREES APART
POINT STYLEFLAT
WIDTH ACROSS FLATS0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH20


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