5306-01-236-6178 BOLT,MACHINE Index 5305-01-236-6180 SCREW,MACHINE

National Stock Number:
5306-01-236-6179

Federal Supply Class:
5306

National Item Identification Number:
012366179

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:
230707819BOCK ENGINEERED PRODUCTS INC
23075RQL2DRS ENVIRONMENTAL SYSTEMS INC
230790598ENGINEERED AIR SYSTEMS INC. DBA DRS SUSTAINMENT SYSTEMS
230792878HDT EXPEDITIONARY SYSTEMS INC


Techincal Specification:
FASTENER LENGTH1.812 INCHES NOMINAL
FEATURES PROVIDEDFINISHED HEAD
HEAD HEIGHT0.188 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
WIDTH BETWEEN FLATS0.500 INCHES NOMINAL
SURFACE TREATMENTCHROMATE ZINC OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.712 INCHES MINIMUM AND 1.812 INCHES MAXIMUM
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNC


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