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National Stock Number:
5305-00-893-3155
Federal Supply Class:
5305
National Item Identification Number:
008933155
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:
| 0.312-24UNF-2A X 1.059 STL ALY | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | FF-S-86 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | H34-569 | 35301 | DRESSER INDUSTRIES INC LEROI DIV |
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Techincal Specification:
| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.059 INCHES NOMINAL | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 0.600 INCHES MINIMUM AND 0.656 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | MINIMUM YIELD STRENGTH | 140000 POUNDS PER SQUARE INCH | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | NONDEFINITIVE SPEC/STD DATA | IV TYPE | | SPECIAL FEATURES | SCREW,CAP, SOCKET HEAD ALLOY STEEL, 0.312-24UNF-2A, THD LGTH 0.875 IN. MIN.; FASTNER LGTH 1.059 IN. NOMINAL | | WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL | | SPECIFICATION/STANDARD DATA | 81348-FF-S-86 GOVERNMENT SPECIFICATION | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.875 INCHES MINIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 24 |
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