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National Stock Number:
5306-01-146-9867
Federal Supply Class:
5306
National Item Identification Number:
011469867
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.
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Manufacturer Information:
| MS9557-05 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| EXTENDED WASHER DIAMETER | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.060 INCHES NOMINAL | | FASTENER LENGTH | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM | | FEATURES PROVIDED | FINISHED HEAD | | GRIP LENGTH | 0.079 INCHES MINIMUM AND 0.099 INCHES MAXIMUM | | HEAD HEIGHT | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | MINIMUM YIELD STRENGTH | 130000 POUNDS PER SQUARE INCH | | MINIMUM TENSILE STRENGTH | 85000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | WIDTH BETWEEN FLATS | 0.313 INCHES NOMINAL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.329 INCHES MINIMUM AND 0.369 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
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