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National Stock Number: 5305-00-163-9436
Federal Supply Class: 5305
National Item Identification Number: 001639436
Description: SCREW,CAP,SOCKET HEAD
Detail: An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
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Manufacturer Information:
45462 | 70276 | ALLEN MFG CO SUB OF CHICAGO PNEUMATIC TOOL CO |
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Techincal Specification:
COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM | FASTENER LENGTH | 0.490 INCHES NOMINAL | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL | HEAD DIAMETER | 0.480 INCHES MINIMUM AND 0.531 INCHES MAXIMUM | HEAD STYLE | FLAT COUNTERSUNK | INTERNAL DRIVE STYLE | HEXAGON | MATERIAL | STEEL OVERALL | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | NOMINAL THREAD DIAMETER | 0.250 INCHES | SPECIAL FEATURES | FINISH COLOR BLACK | WIDTH ACROSS FLATS | 0.156 INCHES NOMINAL | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | SURFACE TREATMENT | OXIDE OVERALL | THREAD LENGTH | 0.255 INCHES NOMINAL | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD SERIES DESIGNATOR | UNC | THREAD QUANTITY PER INCH | 20 |
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