5305-01-550-2124 SCREW,SELF-DRILLING Index 6670-01-550-2126 SCALE,WEIGHING

National Stock Number:
5306-01-550-2125

Federal Supply Class:
5306

National Item Identification Number:
015502125

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.


Manufacturer Information:
ISO4014-M8X40-12.9-A2DI9008INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)


Techincal Specification:
EXTERNAL THREAD TOLERANCE CLASS6G
FASTENER LENGTH40.0 MILLIMETERS NOMINAL
HEAD HEIGHT5.6 MILLIMETERS NOMINAL
HEAD STYLEHEXAGON
NOMINAL THREAD DIAMETER8.0 MILLIMETERS
WIDTH BETWEEN FLATS13.0 MILLIMETERS NOMINAL
SURFACE TREATMENTZINC OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORM
THREAD PITCH IN MILLIMETERS1.2


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