5305-01-163-8240 SCREW,TAPPING Index 5305-01-163-8242 THUMBSCREW

National Stock Number:
5305-01-163-8241

Federal Supply Class:
5305

National Item Identification Number:
011638241

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:
1405619611862GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT
140561967X677GENERAL MOTORS LLC


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.500 INCHES NOMINAL
MATERIALSTEEL COMP 1013 OR
STEEL COMP 1015 OR
STEEL COMP 1016 OR
STEEL COMP 1017 OR
STEEL COMP 1018 OR
STEEL COMP 1019 OR
STEEL COMP 1020 OR
STEEL COMP 1021 OR
STEEL COMP 1022 OR
STEEL COMP 1023 OR
STEEL COMP 1524 OR
STEEL COMP 1025 OR
STEEL COMP 1026 OR
STEEL COMP 1527 OR
STEEL COMP 1029 OR
STEEL COMP 1030 OR
STEEL COMP 1033 OR
STEEL COMP 1034 OR
STEEL COMP 1035 OR
STEEL COMP 1536 OR
STEEL COMP 1037 OR
STEEL COMP 1038 OR
STEEL COMP 1039 OR
STEEL COMP 1040 OR
STEEL COMP 1541 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GRADE 8 ASSN STD ALL MATERIAL RESPONSES OVERALL
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND
38.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH130000 POUNDS PER SQUARE INCH
HEAD STYLEHEXAGON EXTENDED WASHER
HEAD HEIGHT0.312 INCHES NOMINAL
WIDTH BETWEEN FLATS0.305 INCHES MINIMUM AND
0.312 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND
0.440 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.088 INCHES MINIMUM AND
0.098 INCHES MAXIMUM
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
POINT STYLECHAMFER DOG
POINT LENGTH1.190 INCHES MINIMUM AND
1.220 INCHES MAXIMUM
POINT DIAMETER0.240 INCHES MINIMUM AND
0.244 INCHES MAXIMUM
POINT CHAMFER ANGLE60.0 DEGREES NOMINAL
THE MANUFACTURERS DATA
MANUFACTURERS CODE7X677
DESIGN CONTROL REFERENCE14056196


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