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National Stock Number:
5305-01-607-9356
Federal Supply Class:
5305
National Item Identification Number:
016079356
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:
| 91257A811 | 3A054 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| COLOR | YELLOW OVERALL | | FASTENER LENGTH | 3.250 INCHES NOMINAL | | HARDNESS RATING | 33.0 ROCKWELL C MINIMUM OVERALL | | HEAD HEIGHT | 0.391 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | HEXAGON HEAD CAP SCREW | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | SURFACE TREATMENT | CHROMATE ZINC OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.500 INCHES MINIMUM AND 2.000 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 11 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | WIDTH BETWEEN FLATS | 0.938 INCHES NOMINAL |
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