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National Stock Number:
5305-01-439-6253
Federal Supply Class:
5305
National Item Identification Number:
014396253
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:
| 112-0579-055 | 06725 | SPS TECHNOLOGIES, LLC | | 112-0579-055 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 112-0579-055 | 62206 | B & B SPECIALTIES INC | | 112-0579-055 | 94756 | THE BOEING COMPANY |
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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 | 0.604 INCHES MAXIMUM | | FASTENER LENGTH | 0.659 INCHES MINIMUM AND | | 0.691 INCHES MAXIMUM | | MATERIAL | STEEL COMP 410 OR | | STEEL COMP 416 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.365 INCHES MINIMUM AND | | 0.375 INCHES MAXIMUM | | HEAD HEIGHT | 0.244 INCHES MINIMUM AND | | 0.250 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.188 INCHES MINIMUM AND | | 0.190 INCHES MAXIMUM | | HOLE CONFIGURATION STYLE | DOUBLE HEXAGON FLATS | | HOLE TYPE | DRILLED | | HOLE QUANTITY | 4 | | HOLE DIAMETER | 0.052 INCHES MINIMUM AND | | 0.058 INCHES MAXIMUM |
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