5306-00-516-9880 BOLT,MACHINE Index 5306-00-516-9882 BOLT,MACHINE

National Stock Number:
5306-00-516-9881

Federal Supply Class:
5306

National Item Identification Number:
005169881

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:
516988119200US ARMY ARDEC RDECOM
516988119204ARMY, UNITED STATES DEPARTMENT OF THE


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH1.375 INCHES MINIMUM AND
1.406 INCHES MAXIMUM
MATERIALSTEEL COMP 1137 OVERALL
THREAD LENGTH0.250 INCHES MINIMUM
HEAD STYLEHEXAGON
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS2A
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND
30.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.156 INCHES NOMINAL
WIDTH BETWEEN FLATS0.375 INCHES NOMINAL
GRIP LENGTH1.094 INCHES MINIMUM AND
1.125 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD


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