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National Stock Number:
5306-01-353-2003
Federal Supply Class:
5306
National Item Identification Number:
013532003
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:
| MS21095-8012 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 1.531 INCHES NOMINAL | | MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE | | STEEL COMP 431 FASTENER | | THREAD LENGTH | 0.781 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE FASTENER | | SURFACE TREATMENT | PASSIVATE FASTENER | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND | | 32.0 ROCKWELL C MAXIMUM BEARING SURFACE OF HEAD | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | HEAD HEIGHT | 0.740 INCHES MINIMUM AND | | 0.752 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.265 INCHES MINIMUM AND | | 0.295 INCHES MAXIMUM | | LOCKING FEATURE | PATCH OR | | PELLET OR | | STRIP THREADS | | GRIP LENGTH | 0.740 INCHES MINIMUM AND | | 0.750 INCHES MAXIMUM | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 96906 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS21095-8012 |
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