5305-01-578-0163 SCREW,MACHINE Index 5305-01-578-0323 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-578-0203

Federal Supply Class:
5305

National Item Identification Number:
015780203

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:
03275-0214153DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA
95327A68839428MCMASTER-CARR SUPPLY CO


Techincal Specification:
THREAD SERIES DESIGNATORM
THREAD LENGTH30.0 MILLIMETERS MINIMUM AND
38.7 MILLIMETERS MAXIMUM
FASTENER LENGTH60.0 MILLIMETERS NOMINAL
MATERIALSTEEL OVERALL
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD DIAMETER12.0 MILLIMETERS
THREAD PITCH IN MILLIMETERS1.7
THREAD CLASS6G
SURFACE TREATMENTZINC OVERALL
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND
39.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT7.5 MILLIMETERS NOMINAL
WIDTH BETWEEN FLATS19.0 MILLIMETERS NOMINAL


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