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National Stock Number:
5306-00-655-7504
Federal Supply Class:
5306
National Item Identification Number:
006557504
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:
| 5-16 18X8IN | 47562 | GAGE CO THE | | FFB575TYPE1GRADE1 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 8.000 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | THREAD LENGTH | 1.125 INCHES MINIMUM | | HEAD STYLE | SQUARE | | THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 18 | | THREAD CLASS | 2A | | MATERIAL DOCUMENT AND CLASSIFICATION | FF-B-575,GR 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 95.0 ROCKWELL B MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH | | HEAD HEIGHT | 0.186 INCHES MINIMUM AND | | 0.220 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.484 INCHES MINIMUM AND | | 0.500 INCHES MAXIMUM | | FEATURES PROVIDED | UNFINISHED HEAD | | NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND | | 1 GRADE | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 81348 | | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FFB575TYPE1GRADE1 |
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