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National Stock Number:
5305-01-446-1336
Federal Supply Class:
5305
National Item Identification Number:
014461336
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:
| 91253A540 | 39428 | MCMASTER-CARR SUPPLY CO | | GS553BW4-12 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNRC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | RC | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.720 INCHES NOMINAL | | FASTENER LENGTH | 0.750 INCHES MINIMUM | | MATERIAL | IRON ALLOY 660 OVERALL | | COLOR | BLACK OVERALL | | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.480 INCHES MINIMUM AND | | 0.531 INCHES MAXIMUM | | COUNTERSINK ANGLE | 38.0 DEGREES MINIMUM AND | | 44.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.156 INCHES NOMINAL |
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