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National Stock Number:
5305-01-626-0346
Federal Supply Class:
5305
National Item Identification Number:
016260346
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:
| 91247A120 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| FASTENER LENGTH | 2.750 INCHES NOMINAL | | HARDNESS RATING | 25.0 ROCKWELL C MINIMUM OVERALL | | HEAD HEIGHT | 0.2031 MILLIMETERS NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 120000 POUNDS PER SQUARE INCH | | PART NAME ASSIGNED BY CONTROLLING AGENCY | HEXHEAD CAP SCREW 5/16"-24 | | NOMINAL THREAD DIAMETER | 0.3125 INCHES | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.875 INCHES MINIMUM AND 1.187 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNF | | WIDTH BETWEEN FLATS | 0.500 MILLIMETERS NOMINAL |
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