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National Stock Number:
5306-01-253-4429
Federal Supply Class:
5306
National Item Identification Number:
012534429
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:
| B1821BH044C125L | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED | | MS90728-87L | 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 | 1.188 INCHES MINIMUM AND | | 1.250 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | PLASTIC POLYAMIDE LOCKING FEATURE | | STEEL FASTENER | | THREAD LENGTH | 1.045 INCHES MINIMUM AND | | 1.250 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.437 INCHES | | THREAD QUANTITY PER INCH | 14 | | THREAD CLASS | 2A | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE J429,GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR | | ASTM A354,GRADE BD ASSN STD SINGLE MATERIAL RESPONSE FASTENER | | SURFACE TREATMENT | ZINC AND | | CHROMATE FASTENER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE FASTENER | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND | | 38.0 ROCKWELL C MAXIMUM FASTENER | | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH | | HEAD HEIGHT | 0.272 INCHES MINIMUM AND | | 0.291 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.612 INCHES MINIMUM AND | | 0.625 INCHES MAXIMUM | | LOCKING FEATURE | PATCH OR | | STRIP THREADS | | FEATURES PROVIDED | FINISHED HEAD | | SPECIAL FEATURES | LOCKING FEATURE MATERIAL EPOXY PLASTIC |
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