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National Stock Number:
5306-01-481-7449
Federal Supply Class:
5306
National Item Identification Number:
014817449
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:
| NAS428-6A12 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
| FASTENER LENGTH | 1.250 INCHES MINIMUM AND 1.312 INCHES MAXIMUM | | GRIP LENGTH | 0.031 INCHES MINIMUM AND 0.062 INCHES MAXIMUM | | HEAD HEIGHT | 0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM | | HEAD STYLE | CROWNED HEXAGON | | MATERIAL | STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 1.688 INCHES MINIMUM AND 1.781 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 24 |
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