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National Stock Number:
5305-01-236-1670
Federal Supply Class:
5305
National Item Identification Number:
012361670
Description:
SCREW,CAP,HEXAGON HEAD
Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.
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Manufacturer Information:
| 1/2-13X3UNC-2A,ALL THREAD | 1X179 | SPECTRUM SCIENCES & SOFTWARE, INC. | | 1/2-13X3UNC-2A,ALL THREAD | 3L5M5 | J & P KHAMKEN INDUSTRIES INC | | 1/2-13X3UNC-2A,ALL THREAD | 61420 | VER-VAL ENTERPRISES INC. | | 8457666-1 | 18894 | AIR ARMAMENT CENTER/ EN | | 91309A724 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| FASTENER LENGTH | 2.940 INCHES MINIMUM AND 3.060 INCHES MAXIMUM | | HEAD HEIGHT | 0.312 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE GRADE 2 ASSN STD ALL MATERIAL RESPONSES OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 74000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 24000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | WIDTH BETWEEN FLATS | 0.750 INCHES NOMINAL | | SURFACE TREATMENT | ZINC OR CADMIUM OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 2.786 INCHES MINIMUM AND 3.060 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 13 | | THREAD SERIES DESIGNATOR | UNC |
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