5306-01-557-0440 BOLT,MACHINE Index 5306-01-556-6609 BOLT,MACHINE

National Stock Number:
5306-01-556-4985

Federal Supply Class:
5306

National Item Identification Number:
015564985

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:
1822121C2338X5ND DEFENSE LLC


Techincal Specification:
EXTENDED WASHER DIAMETER20.4 MILLIMETERS MINIMUM AND 20.8 MILLIMETERS MAXIMUM
FASTENER LENGTH19.6 MILLIMETERS MINIMUM AND 20.4 MILLIMETERS MAXIMUM
HEAD HEIGHT5.9 MILLIMETERS MINIMUM AND 6.8 MILLIMETERS MAXIMUM
HEAD STYLEHEXAGON EXTENDED WASHER
LOCKING FEATUREPATCH LOCKING FEATURE
III PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT, HF SPCL-M8P
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER8.0 MILLIMETERS
WIDTH BETWEEN FLATS9.6 MILLIMETERS MINIMUM AND 10.0 MILLIMETERS MAXIMUM
SURFACE TREATMENTPHOSPHATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH17.7 MILLIMETERS MINIMUM AND 18.5 MILLIMETERS MAXIMUM


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