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National Stock Number:
5306-00-528-7381
Federal Supply Class:
5306
National Item Identification Number:
005287381
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:
| 5287381 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| COUNTERSINK ANGLE | 75.0 DEGREES NOMINAL | | FASTENER LENGTH | 0.796 INCHES MINIMUM AND 0.828 INCHES MAXIMUM | | FEATURES PROVIDED | FINISHED HEAD | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.312 INCHES NOMINAL | | HEAD STYLE | HEXAGON COUNTERSUNK | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OR QQ-S-637 FED SPEC 3RD MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 1035 OR STEEL COMP 1040 OR STEEL COMP 1137 OVERALL | | NOMINAL THREAD DIAMETER | 0.438 INCHES | | NONSTANDARD THREAD PITCH DIAMETER | +0.4014 TO 0.4040 INCHES | | WIDTH BETWEEN FLATS | 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM | | SURFACE TREATMENT | CADMIUM OR ZINC OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.656 INCHES MINIMUM AND 0.718 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNF |
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