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National Stock Number:
5306-00-655-5963
Federal Supply Class:
5306
National Item Identification Number:
006555963
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:
| AN7-37A | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 3.969 INCHES NOMINAL | | MATERIAL | STEEL COMP 4037 OR | | STEEL COMP 4130 OR | | STEEL COMP 8630 OR | | STEEL COMP 8735 OR | | STEEL COMP 8740 OR | | STEEL COMP 4140 OVERALL | | THREAD LENGTH | 0.657 INCHES MINIMUM | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.438 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND | | 32.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | HEAD HEIGHT | 0.234 INCHES MINIMUM AND | | 0.266 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.615 INCHES MINIMUM AND | | 0.627 INCHES MAXIMUM | | GRIP LENGTH | 3.312 INCHES NOMINAL | | FEATURES PROVIDED | FINISHED HEAD | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 88044 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN7-37A |
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