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National Stock Number:
5305-01-497-5137
Federal Supply Class:
5305
National Item Identification Number:
014975137
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:
| AES16F250A00SH7A31 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | | B18.24-2004 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | | S300NA44FAD17429ANAB1 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | | S300NA44FAD17439ANAB1 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | | S300NA44FAD17439ANAB1 | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.839 INCHES NOMINAL | | FASTENER LENGTH | 1.000 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.480 INCHES MINIMUM AND | | 0.531 INCHES MAXIMUM | | COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND | | 84.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.156 INCHES NOMINAL | | SPECIAL FEATURES | CLEANED AND DESCALED PER ASTM A380 |
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