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National Stock Number:
5306-01-172-0512
Federal Supply Class:
5306
National Item Identification Number:
011720512
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:
| AN20-80A | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 8.172 INCHES MINIMUM AND | | 8.219 INCHES MAXIMUM | | MATERIAL | STEEL COMP 4140 OR | | STEEL COMP 8740 OR | | STEEL COMP 8630 OR | | STEEL COMP 8735 OR | | STEEL COMP 4130 OR | | STEEL COMP 4037 OVERALL | | THREAD LENGTH | 1.656 INCHES MINIMUM AND | | 1.735 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 1.250 INCHES | | THREAD QUANTITY PER INCH | 12 | | THREAD CLASS | 3A | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 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 | 0.640 INCHES MINIMUM AND | | 0.672 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 1.802 INCHES MINIMUM AND | | 1.815 INCHES MAXIMUM | | GRIP LENGTH | 6.484 INCHES MINIMUM AND | | 6.516 INCHES MAXIMUM | | FEATURES PROVIDED | FINISHED HEAD | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 88044 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN20-80A |
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