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National Stock Number:
5306-00-550-3686
Federal Supply Class:
5306
National Item Identification Number:
005503686
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:
| ASME B18.2.1 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | | B18.2.1 | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED | | FF-B-575 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | MS35355-3 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| FASTENER LENGTH | 1.250 INCHES NOMINAL | | FEATURES PROVIDED | UNFINISHED HEAD | | HARDNESS RATING | 95.0 ROCKWELL B MAXIMUM OVERALL | | HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.188 INCHES MAXIMUM | | HEAD STYLE | SQUARE | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A307 GR1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 60000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | WIDTH BETWEEN FLATS | 0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SAE/AMS QQ-P-416 TY2CL3 FED SPEC SINGLE TREATMENT RESPONSE OR ASTM B633 TY2CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OR ZINC OVERALL | | THREAD CLASS | 2A | | THREAD LENGTH | 0.750 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNC |
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