5305-01-397-6849 SCREW,CAP,SOCKET HEAD Index 5305-01-397-6851 SCREW,TAPPING

National Stock Number:
5305-01-397-6850

Federal Supply Class:
5305

National Item Identification Number:
013976850

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.


Manufacturer Information:
1150268524617GENERAL MOTORS CORP
115026857X677GENERAL MOTORS LLC
GEP1150268534623AM GENERAL LLC
5305PL08617849009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH


Techincal Specification:
THREAD SERIES DESIGNATORM
THREAD LENGTH20.0 MILLIMETERS MAXIMUM
FASTENER LENGTH19.2 MILLIMETERS MINIMUM AND
20.8 MILLIMETERS MAXIMUM
MATERIALSTEEL PROPERTY CLASS 9.8 OVERALL
HEAD STYLEHEXAGON EXTENDED WASHER
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD DIAMETER10.0 MILLIMETERS
THREAD PITCH IN MILLIMETERS1.5
EXTERNAL THREAD TOLERANCE CLASS6G
MATERIAL DOCUMENT AND CLASSIFICATIONGM500-M, CAGE 24617 MFR REF SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONGM6174-M, CODE A, CAGE 24617 MFR REF SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING27.0 ROCKWELL C MINIMUM AND
36.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT9.1 MILLIMETERS MINIMUM AND
10.9 MILLIMETERS MAXIMUM
WIDTH BETWEEN FLATS14.70 MILLIMETERS MINIMUM AND
15.00 MILLIMETERS MAXIMUM
EXTENDED WASHER DIAMETER21.5 MILLIMETERS MAXIMUM
EXTENDED WASHER THICKNESS1.5 MILLIMETERS MINIMUM


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