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National Stock Number:
5306-00-550-4656
Federal Supply Class:
5306
National Item Identification Number:
005504656
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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Techincal Specification:
| FASTENER LENGTH | 0.750 INCHES NOMINAL | | FEATURES PROVIDED | UNFINISHED HEAD | | HARDNESS RATING | 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.186 INCHES MINIMUM AND 0.220 INCHES MAXIMUM | | HEAD STYLE | SQUARE | | MATERIAL DOCUMENT AND CLASSIFICATION | FF-B-575 GRADE 5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 120000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 5 GRADE | | SPECIAL FEATURES | FURNISHED W/ONE SQ NUT | | WIDTH BETWEEN FLATS | 0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNF |
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