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National Stock Number:
5305-00-291-6790
Federal Supply Class:
5305
National Item Identification Number:
002916790
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:
| 9G840 | 12603 | CLARK EQUIPMENT CO | | FFS86 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM | | FASTENER LENGTH | 2.500 INCHES NOMINAL | | HEAD DIAMETER | 0.860 INCHES MINIMUM AND 0.875 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4140 OVERALL | | MINIMUM YIELD STRENGTH | 140000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | NONDEFINITIVE SPEC/STD DATA | 4 TYPE | | WIDTH ACROSS FLATS | 0.312 INCHES MINIMUM AND 0.315 INCHES MAXIMUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.250 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 13 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
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