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National Stock Number:
5306-00-275-4168
Federal Supply Class:
5306
National Item Identification Number:
002754168
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:
| 4252A | 61809 | JOSLYN CLARK CONTROLS INC | | 48807 | 30076 | HYSTER-YALE GROUP, INC. | | BD23A | 13841 | TIFFIN PARTS, L.L.C. |
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Techincal Specification:
| DISTANCE FROM CENTERLINE TO FLAT | 0.213 INCHES MINIMUM AND 0.218 INCHES MAXIMUM | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.281 INCHES NOMINAL FIRST HOLE | | FASTENER LENGTH | 2.406 INCHES NOMINAL | | FEATURES PROVIDED | UNFINISHED HEAD | | HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 0.625 INCHES NOMINAL | | HEAD HEIGHT | 0.188 INCHES NOMINAL | | HEAD STYLE | DEE | | MATERIAL | STEEL COMP 2330 OR STEEL COMP 4140 OR STEEL COMP 1038 OR STEEL COMP 8637 OR STEEL COMP 4037 OR STEEL COMP 3135 OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.109 INCHES NOMINAL FIRST HOLE | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNF |
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