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National Stock Number:
5306-01-387-9281
Federal Supply Class:
5306
National Item Identification Number:
013879281
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:
| ST1222-16 | 52661 | RTX CORPORATION | | ST1222-16 | 77445 | RTX CORPORATION |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 1.240 INCHES MINIMUM AND | | 1.260 INCHES MAXIMUM | | MATERIAL | NICKEL ALLOY OVERALL | | HEAD STYLE | HEXAGON EXTENDED WASHER | | THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.3125 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | WIDTH BETWEEN FLATS | 0.375 INCHES NOMINAL | | EXTENDED WASHER DIAMETER | 0.490 INCHES MINIMUM AND | | 0.510 INCHES MAXIMUM |
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