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National Stock Number:
5305-01-217-4004
Federal Supply Class:
5305
National Item Identification Number:
012174004
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:
| 455531 | 24617 | GENERAL MOTORS CORP | | 594336 | 21450 | ARMY WEAPONS COMMAND ATTN AMSWE-REE-S |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.473 INCHES MINIMUM AND | | 0.605 INCHES MAXIMUM | | FASTENER LENGTH | 0.734 INCHES MINIMUM AND | | 0.766 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1013 OR | | STEEL COMP 1015 OR | | STEEL COMP 1016 OR | | STEEL COMP 1017 OR | | STEEL COMP 1018 OR | | STEEL COMP 1019 OR | | STEEL COMP 1020 OR | | STEEL COMP 1021 OR | | STEEL COMP 1022 OR | | STEEL COMP 1023 OR | | STEEL COMP 1025 OR | | STEEL COMP 1026 OR | | STEEL COMP 1029 OR | | STEEL COMP 1030 OR | | STEEL COMP 1033 OR | | STEEL COMP 1034 OR | | STEEL COMP 1035 OR | | STEEL COMP 1037 OR | | STEEL COMP 1038 OR | | STEEL COMP 1039 OR | | STEEL COMP 1040 OR | | STEEL COMP 1524 OR | | STEEL COMP 1527 OR | | STEEL COMP 1536 OR | | STEEL COMP 1541 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE,GR8 ASSN STD ALL MATERIAL RESPONSES OVERALL | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND | | 38.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 130000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.480 INCHES MINIMUM | | COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND | | 82.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.156 INCHES MINIMUM AND | | 0.159 INCHES MAXIMUM | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 21450 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | 594336 |
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